Today, my throat felt slightly irritated, so I ordered a PCR test through the Meituan app. I placed the order at 15:10. The test kit was delivered to my doorstep by 15:36. At 17:27, I received a text message reminding me to check the test results. The results showed I was infected with Streptococcus pneumoniae (pneumococcus), with a detected concentration of 2.04×10³ copies/mL, which is relatively low. Other pathogens tested, including influenza, COVID-19, and over a dozen others, were negative. Pneumococcus is a commensal bacterium that can exist in healthy individuals. I suspect the infection was likely triggered by colder temperatures and catching a chill while sleeping. Given that I consistently wear masks outdoors, transmission from others seems unlikely. The app also offered one-click ordering for recommended medications: cephalosporin antibiotics and cough suppressants, totaling 30 RMB (~4 USD), with delivery promised within 20 minutes. As I already had these medications at home, no purchase was necessary. The app additionally provides instant access to masks, hand sanitizers, and even automated generation of sick leave certificates. This was my experience today, shared for your reference.

Today my wife went to the kindergarten and found out that the two 3Pro we donated were off. The teacher said that she doesn't believe that it will help reduce the risk. 🤔

Him: I had Covid for 5 times, so I have the antibody. And because you never had Covid, so you don't have the antibody. So I am stronger than you. Me(Behind a mask and tons of air purifiers): Then why you had it for 5 times??🤣

One member of our Covid cautious community suicided due to depression and long Covid. Someone saw his farewell on social media and called the police, but it was too late to save him. He was only 29 years old.

It's true, and the reason is quite straightforward. Most hospitals in China are state-owned and are restricted from making excessive profits. Doctors' salaries are also relatively limited—not significantly higher than those in many other professions, and much lower compared to their counterparts in other countries. In addition, medicines are procured through centralized government-led bidding. Thanks to the massive scale of the market, medicines prices can be driven down significantly. As a result, costs are controlled from both the medical service and pharmaceutical sides. Health care is meanless if it is not affordable.

Some Chinese journalists and cameraman posted on social media that they need to do two PCR tests before getting close to Vladimir Putin. It is not a flu.

Amazon's policy works like this: Multiple sellers can sell "the same" products on the listing. The seller with the lowest price automatically becomes the default choice at checkout, and most buyers never bother to select a different seller from the list. Anyone can sell on this listing without authorization from the brand owner. This creates a loophole exploited by some sellers: they drastically lower the price late at night to become the default seller, then ship counterfeit products without the brand owner can notice and react. Furthermore, negative product reviews are attached to the listing itself, not the specific seller who fulfilled the order. So, a bad experience with a counterfeit product from an unauthorized seller damages the brand's reputation. Sometimes, when our own stock runs out, other sellers will also use our product listing to sell their items. Therefore, I strongly recommend purchasing directly from our official website.

I understand people don't want to change the way they used to live. But we can never go back to 2019. If we look at human history, human beings constantly adopt healthier way of life. We put on cloth, cook our food instead of eating raw food, we built sewer system, public bathroom, etc. If the people in the history can do such great changes, why can't we, a much more advanced and educated society do it again? Wearing masks and massively implementing ventilation and filtration system in building has to be the next public health milestone for human kinds.

My daughter just started the kindergarten, and I managed to donate two units of AirFanta 3Pro to her classroom. The school was not very cooperating in the first place. But after I showed them the test reports of efficiency of removing the microorganism in the air, they finally accepted it.

Today, a doctor posted a video on Chinese TikTok claiming that masks can't prevent COVID or the flu. He's well-known and respected for his expertise in tumor assessment from CT images of pulmonary nodules and is considered an authority in that field. I left a comment saying: "Please stop spreading nonsense. You’re an expert in lung tumors, but masks are in a completely different field, and it’s clear you haven’t studied them. I bet you don’t even know the national standards for masks or have ever read any of them. Focus on educating people about lung tumors which you know and stop commenting on masks which you don't know what you are saying." Guess what? He deleted the video within a few hours. 🤣 A well-known doctor spreading disinformation can have a huge impact, and we need to stand up and call it out directly.

I had a one-hour, in-person meeting with an interior designer three days ago. I consistently wore my Zimi 9541 mask during the entire encounter. He has now tested positive for COVID and is coughing heavily. Importantly, he told me he was already experiencing cold-like symptoms before our meeting. As of now, I feel perfectly healthy. Mask works. Mask up.

Recently there is a study of Long Covid in China. Scientists utilized cryo-electron microscopy to examine myocardial biopsy tissue from long COVID patients and found severe damage to the mitochondria within the cells. This organelle impairment cannot be detected through routine examinations. sciencedirect.com/science/ar…

I don't understand why some doctors are against wearing masks. One of our friends caught COVID after visiting a dentist who was coughing and not wearing a mask. Aren't doctors are trained for many years? For me it's like engineers don't know the difference between plastic and metal.

How is COVID-19 testing conducted in China? In China, affordable and fast PCR testing is available in major cities. Several companies provide this service, and the process is simple—just place an order through a mobile app. Within two hours, a healthcare worker will arrive at your specified address with a sampling kit, which includes: 🔻A long swab for throat sampling 🔻A short swab for nasal sampling 🔻A test tube to keep the samples After collecting the samples, you place both swabs back into the provided test tube and return it to the worker. They will then deliver it to a lab for analysis. Typically, results are available on the app within three hours. There are two testing options for respiratory pathogens: 🔻Basic Panel (RMB 99 / ~$14 USD) – Tests for: 🔹Flu A 🔹Flu B 🔹COVID-19 🔹Human rhinovirus 🔹adenovirus 🔹Mycoplasma pneumoniae 🔹Streptococcus pneumoniae 🔹Respiratory syncytial virus (RSV) 🔹human coronaviruses (non-COVID) 🔹Human parainfluenza virus 🔹Haemophilus influenzae 🔻Extended Panel (RMB 159 / ~$22 USD) – Includes all pathogens from the Basic Panel, plus: 🔹Group A Streptococcus 🔹Bordetella pertussis (whooping cough) This option also provides pathogen load (viral/bacterial concentration) in addition to positive/negative results. Once you receive your PCR test report, the same app allows you to purchase appropriate medications for treatment. I consider it very convenient. Whenever my family member is not feel well, I will arrange a PCR test for them. Specially I can avoid taking kids to the hospital, where is quite risky.

"There’s an engineer in China named Adam Wong who is making some really great products, one that breaks down and collapses into a carry-on with you. It’s extremely powerful and cost-effective." That's me I guess. 😃 theguardian.com/wellness/ng-…

Today I filmed a video to present the AirFant 3Pro crbox which is very popular in China. Check it out. It will be available by end of March on Amazon US and Canada.

The west Covid Cautious Community has joined into RedNote, and the local Covid Cautious Community are talking with them directly.

I donated a 3Pro to a doctor that I followed on social media in China. Instead of put it in his own office to protect himself, he put it in the patient room to protect others. After a few months, he posted and here is my translation. "I have no idea of how much it costs, but it really works. For instance, a patient just received a gastric cancer operation. But in the same room, a rectal cancer patient started to get fever to 39°C. After a CT scan, his lung is infected. Following a PCR, it shows multiple infection. But the room is full, we can’t relocate this fever patient. Then I remember that I have a CRbox. I put it close to the gastric cancer patient, running in 24hours. I am so glad that even if the two patients are in the same room, the gastric cancer patient was not infected, and could leave hospital after 7 or 8 days. Later this device protects several patients who received Gastrointestinal Tumors operations. Now it lays beside an intestinal cancer patient. Four days after operation, he didn’t get respiratory tract infection. Before I use this, it is normal that the patient get fever after operation. We can always find different virus or mycoplasmainfection if PCR is done. My conclusion is: this device is very recommended. I will put one in every patient room and in the office once my finance satiation allows. " Here is the link. weibo.com/7051949804/4988380…

Very well said. Like clean water, clean air is not a luxury but a fundamental part of life.

I got a message from my kid's teacher. One of the AirFanta 3Pro(early version) I put in the classroom is completely blocked in 3 month. So I went there and replaced the filter. Apparently this one is close to the black board and take most of the dust from the chalk. They should be replaced long before this. Filters from the other three 3Pro are still OK.

I have a wearable prototype now. It is on the neck and the clean flow covering the nose. It can remove more than 99% PM0.3 if you use it correctly. How do you like it? What about the social pressure when wearing this?

From what I witness and hear, it is true. The population density in classrooms is much higher than in places like offices, so the probability of spreading respiratory diseases is significantly greater. Currently in China, it's common to see on social media that half a class gets sick from the H3N2 influenza A virus.

Today a friend shared a slide show from an academic conference on "non-contact wearable clean air delivery solutions." The study confirmed that an air purifier on the neck can effectively create a clean air zone around the face, forming a barrier against pollutants while improving comfort over traditional masks. We are thrilled to see academic validation for the core technology behind AirFanta Wear. While the theory is now being presented, we've already made it a reality. AirFanta Wear has been on the market in China for nearly two months, with our global launch scheduled for November 3rd.

Everytime I have to unmask for the security check, I hold my breath until masking back. But there is a small chamber between the respirator and the face. So I will exhale to push the dirty air out before the first inhale. Not sure whether it is scientific.

First of all, “5 air changes per hour" is actully not much. In this purification speed, it takes 40 minutes to reduce 95% areosols from the time it was released into the room. I would go for 10 air changes. Second, "recommend" doesn't work. It has to be mendotory in places like schools.

A real dialog between a Covid cautious person and his friend. LOL Friend: What are you wearing? Me: A mask. Friend: Isn't that uncomfortable? Isn't it bad for your health? Me: It's okay. Friend: I keep getting sick lately. Me: Just wear a mask. Friend: No one around me is wearing them anymore. Me: Alright. Friend: How come you never get sick? Me: I wear a mask. Friend: Why do I keep getting sick? Me: … Friend: How are you never sick? Me: I. Wear. A. Mask!!!!! - - - - - - - - - - - - - - - This friend circled back after the Chinese New Year: Friend: Did you get sick during the holidays? Me: No. Friend: You’re amazing. I had a fever and diarrhea. Me: You’re pretty amazing too. Friend: I think it was norovirus. My whole family had diarrhea. Is your family healthy? Me: I wash my hands thoroughly, sanitize, and wear a mask. Friend: If you never expose yourself to germs, your immunity will weaken over time. Me: Sure. Friend: You *really* didn’t get sick??」

I have finalised the design of the hand air purifier and made a 3D print prototype. Test shows 99% filtrated at the outlet. Perfect for the high risk scenes like in a bus/elevator/seeing a dentist by putting it at the nose and breathing the filtrated air. And my kid already like it. 🤩

My family celebrated my 39th birthday together. Another year safe and sound without Covid infection. Only my son got norovirus once after attending a swimming race and was sick for two days. I hope that everyone stays healthy in the days ahead.

Great to see a huge influencer promoting respirator. Thank you.

The air quality in a theater with strong ventilation system is shown in the photo. It is completely doable to implement the system to public buildings, at least schools?

Anti-mask or COVID-denial comments will lead to an immediate block. I have neither the time nor the interest to engage in trying to convince them.

I want to be completely honest and transparent with you about AirFanta products—what they can do and what they can’t—so you can make an informed decision about which tools are best for your needs. Studies show that air purifiers can only reduce airborne infection by 20%-40%. This is because it typically takes 3-5 air changes to reduce airborne pathogens by 95%, and most air purifiers on the market are not designed to achieve this level of filtration in a short amount of time. Most models have airflow rates below 400 CFM, which is reasonable given that they were originally designed before the COVID-19 pandemic to address concerns like dust, allergens, and VOCs, not to handle highly infectious pathogen loads. That’s why I’m working on developing a new model with CADR of around 1000 CFM, which would be unprecedented in the industry. Additionally, I'm working on a wearable air purifier that sits around the neck and delivers clean air directly over the nose. I believe both of these innovations have the potential to be game-changers in reducing the risk of COVID transmission.

For short, choose a window seat.

Great news to share! 1. Our new website, air-fanta.com, is live! Customers in the US, Canada, EU, UK, and Southeast Asia can now order directly from us. Prices include tax, making it more affordable than Amazon. Orders will still be shipped via Amazon logistics, and currently, we accept only PayPal. 2. Our 4Lite model is now CARB certified! While Amazon approval is pending, you can purchase it right now on air-fanta.com.

A conventional air purifier (eg. AirFanta 3Pro) typically requires three air changes to reduce the airborne viral load by 95%. In contrast, an N95 mask can achieve the same level of reduction instantly. While air purifiers are effective over time, they don’t provide immediate protection. This is why you should still wear a mask in a shared space, even if there’s an air purifier running. Air purifiers are great for long-term protection but aren’t a substitute for immediate safety. Laminar flow air purifiers (eg. AirFanta 4Lite) differ from conventional ones in that they can reduce 90%-95% of the viral load almost instantly within a small area. This makes them more comparable to masks in terms of immediate protection, rather than functioning like conventional air purifiers, which work over a longer period of time. N95 masks, conventional air purifiers, and laminar flow air purifiers can all be used together to create a "Swiss cheese" approach, significantly reducing the risk of infection. Each layer of protection compensates for the weaknesses of the others, making it extremely difficult for the virus to pass through and bringing the risk of infection to nearly zero.

Hi everyone, I am a Covid cautious Engineer. I own a small business of design and manufacture air purifier with good performance and quite fair price. In China, I have served more than 10,000 Covid cautious person. Now I bring the most welcomed and classic models to the Covid cautious groups around the world. 🔻Model 3Pro: Classic crbox, 488cmf, 4 x 14cm PC fans 3.7m2 E11 filters. Portable, can be fit into a 20" carry-on luggage. Video: nitter.app/Engineer_Wong/st… US: amazon.com/dp/B0CJTYWQBT Canada: amazon.ca/dp/B0CJTYWQBT Australia, New Zealand and SEA: aliexpress.com/item/10050066… EU and UK: Amazon to be added. 🔻Model 4Lite: a Laminar air purifier to direct the filtrated stream to face for breathing. Video: nitter.app/Engineer_Wong/st… US: amazon.com/dp/B0CXDPCR26 Canada: amazon.ca/dp/B0CXDPCR26 Australia, New Zealand and SEA: aliexpress.com/item/10050067… EU and UK: Amazon to be added. Replacement filters are in the same shop. Currently some batches are under transportation so it might not be available. You can email the country you are located to airfanta@air-fanta.com, so that you can get notification when the products are available. Any questions, concerns, advice, you are welcomed to email. I hope my product can help you and your family stay healthy. Best Regards, Adam

The handheld air purifier is almost ready to sale here locally. If you cover your nose with it, it can stop vast majority proportion of viral aerosol to be inhaled in. It is a small but very useful tool to provide an effective layer of protection. After testing for one more month and fixing all the problems that might coming up, I will ship some units to US and Canada.

I reckon only folks who are really into breathing clean air can make awesome air filters. But it looks like most companies are just in it for the cash. I went to a meeting organized by the air purifier association, with dozens of air purifier manufacturers and guess what? I was the only one wearing a respirator. And there is no air purifier in the meeting room. 🤔

It is meme time!

Before the travelling, I specially called the hotel to make sure they provide an air purifier in the room. But once I arrived at the hotel and open the air purifier. The filter was like this(Picture 1). 😱 I complained to them, and then they took the device out and returned it after 5 minutes. "It has been cleaned, sir." and I saw this (picture 2). Then I have to ask the people of Airfanta to send an 3Pro to me. A lesson learned: I will not trust any other air purifier but to bring my own next time.

The H1N1 is outbreaking here in China. The third outbreak in two years time. And I've already seen mother sharing heartbreaking posts on social media about losing her baby. Take care, everyone.

Billionaires consistently downplay COVID's devastating impact on public health. Their concern isn't for people's wellbeing - only whether workers remain productive and keep consuming. Anyone who actually believes their rhetoric is utterly naive.

There is a new Covid wave happening in China. What about your place?

We need your thoughts! We offer AirFanta products on our website and on Amazon, and we see that most of you prefer Amazon even with the higher price. Can you tell us what drives that choice for you? It's a bit tougher for us on Amazon with all their fees and extra charges. The recent tariffs make it worse. We will have to raise up the price on Amazon. So, if you can, ordering from our website directly is a massive help and support to us.

This is an excellent example illustrating that influenza is not caused by catching a cold. Contracting the flu only occurs when one inhales a sufficient amount of the influenza virus. Ventilation and air purification can effectively reduce the amount of influenza virus in the air, thereby lowering the probability of getting sick. Unfortunately, many people are unaware of such a simple fact.

I made a short video for the AirFanta 4Lite laminar air purifier. A small batch is on the way to US warehouse. It can be pre-ordered now. This week replacement filters will also be shipped. In a few days I will make a longer video introducing the how the filtrated laminar flow creates a "clean breathing zone" at your face. amazon.com/dp/B0CXDPCR26

Recently there is lots of news about pig farms installing Controlled Mechanical Ventilation System. It help the pigs to get less respiratory disease, and proved to be economical. So more and more pig farms are installing it. Meanwhile tens of our kids stay in a small classroom for the whole day without a ventilation or filtration system, exchanging Covid, influenza, RSV, whooping cough and etc. How come?

Today I received a message. He said "I had a transplantation because of leukaemia. My immunity is very low after that so I often got cold and fever. But after I bought your air purifier, and used it for two months I haven't been sick. " This is the moment I feel my work very meaningful.

Today I saw a obstetrician posted on her social media: Getting covid is not all bad. It help you to practic your immunity. And she has 1.5 million followers.

So today I filmed another video to show how the AirFant 3Pro can be disassembled and packed into a 20" suitcase. Still 1/3 space left there.

The 10% tariff has an impact of about 3-5% on our sales price. However, I understand that when we sell our air purifiers, there's an implicit expectation that replacement filters will be offered at the same price over the long term. If I were a consumer, I wouldn’t be happy to see the price of replacement filters increase, forcing me to either accept the price hike or go without. So, we’ve decided to absorb the cost ourselves and keep all prices the same, including the air purifers.

Humans have survived millions of years without cloth, cooked food, drain, disinfection measures and antibiotic. So why don't you give up all these and rely on your immue system? Be a real darwinian please.

The AirFanta G2 particulate & CO2 meter is ready to produce. Apart from CO2, it can also measure PM1.0, PM2.5 and PM10, which can give you an idea of how the air purifiers are working. And it will be cheaper than Aranet 4.

About a year and a half ago, I began designing a respirator with the goal of making it more comfortable and better fitting than a standard N95 mask. My concept incorporated an H14 filter and a battery-powered fan, all housed within the compact dimensions of an N95 mask. However, the project proved overly ambitious, and the prototype fell short of achieving my vision. As a result, I decided to suspend the project. I hope that someday, with more experience and knowledge, I will reach the level needed to bring this idea to fruition.

The mold for the handheld laminar air purifier is almost finish. It always costs a lot to invest in a new product. And it is not easy to break even.

Humans have survived millions of years without cloth, cooked food, drain, disinfection measures and antibiotic. So why don't you give up all these and rely on your immue system? Be a real darwinian please.

We made a short video to show how powerful the 3Pro is on pulling the adjacent air. The smoke drifts in one direction in the beginning but is then drawn back toward the filters.

Policy Update: The warranty period for AirFanta 4Lite laminar air purifiers has been extended from one year to two years. This change is effective immediately and applies retroactively to all past and future orders. You can find it on our website. air-fanta.com/ I hope you and your loved ones are staying safe and healthy. Please don't hesitate to reach out if there is anything I can do to help.

I use this in my home. A crbox with the fan at reverse direction, meaning taking air from outside and blowing to the box. The air will be filtrated by the four pieces of H12 filters before entering my home. What needed is one or two adaptors and a pipe that fit the adator. Then I have 300m3/h ventilation with all my doors and windows closed. It is inexpensive and easy. But I am not sure where to find these adaptors and pipes in US.

I developed a meter to measure Co2 and particles for Covid cautious people. It is very popular in China. Now I made an English version of it. 🔻It contains a NDIR co2 sensor and a laser particle sensor. 🔻It shows particle quantity per liter, which is very rare in the market. It can give you more information when the air quality is 0μg/m3. 🔻It can be connected to an app on your phone through Wi-Fi. 🔻If you have a Tuya smart plug and connect it with the air purifier, you can set an automation to start/close the air purifier based on Co2 or PM2.5 reading on the meter. I haven't started to manufacture, if you have any suggestion, please let me know.

Thank you everyone for supporting me. The 3pro now has a "Amazon's choice" tag on it. 😉

Hey everyone, I'm excited to share that AirFanta Wear is now live on air-fanta.com/products/airfa…. You'll find a thorough product breakdown and a detailed video I made explaining a lot of things about it. piped.video/watch?v=dub-mm1m… We've sent some stock by sea to the warehouses in US, UK, EU, Australia, and Canada (est. 35-50 days). But if you need it urgently, we can ship directly from our China facility by air. Really hoping this can be helpful. If you have any question, please leave a comment or send email to airfanta@air-fanta.com.

I also need to say thanks to Twitter. I haven't spend a penny here and also on Amazon ads to get customers. This helps me to set a very low price for the products.

The new Covid wave here seems to be a very big one. Everyday I hear from lots of people that they got positive. We did a survey on social media, showing that 6% of people got Covid in recent 2 weeks. How about the situation at your place? Take as many precaution measures as possible now.

I made a new video to show not only how powerful the AirFanta 3Pro is, but also how compact and portable it is. It is the only air purifier on the market that have more than 400CFM CADR and be so portable at the same time!

Music should fill the air, not viruses.

A new batch of AirPurifier 3Pro is available on Amazon US and Canda. US:amazon.com/dp/B0CJTYWQBT Canada:amazon.ca/dp/B0CJTYWQBT It is a simple but very powful air purifier. The video shows how to assemble it. And another video of how to fit in a 20" carry on luggage: nitter.app/Engineer_Wong/st…

People often take clean water for granted, but it hasn't always been this way. In the 19th century, pioneers like John Snow and Louis Pasteur uncovered the link between cholera and contaminated water. At that time, people didn’t hesitate to take action, building large-scale, modern water infrastructure to protect public health. Today, we enjoy clean water as a given, but it’s the result of a long history of effort and innovation. However, a similar story is unfolding now. Scientists have identified the connection between polluted air and a variety of airborne diseases, but unlike the efforts made with water, we aren't investing in the same kind of infrastructure to ensure clean air. Why aren't we taking similar action to safeguard our health from air pollution?

How do you like this package?

Testing the laminar flow purifier "AirFanta 4Lite". At 30cm(12") distance, the numbers of particle of 0.3micro is 97.9% less than the environment. This is a very effective way when you can't put on a mask, i.e. eating or drinking.

AirFanta 4Lite in a box filled with smoke. When it is turned on, in shorter than 10 seconds, it can create a stable and close to completely clean zone for you to breath in. Further more, its not very large CADR allows it to clean all the smoke in the box in 90s. It can be ordered from: amazon.com/dp/B0CXDPCR26?maa…

Amazon is starting to deliver 4Lite for the pre-order. Sooner we will see more posts. I am excited to see how people would evaluate it. For 4Lite, the bracket allows you to adjust the direction so that you can easily align it towards the face in different cercumstance. See the video. And the surface is a lot longer. When we are dinning, our head always rise and bow repeatedly. The longer "clean area" can cover that movement, so that the face is less likely to get out of the "clean area". Last, there is a 74wh battery built-in. It can run for the whole day. And you can use it to charge your phone so you don't have to take a power bank with you.

If they don't test, they won't know when they have Covid.

I have two cats. Air purifier can also help collecting the floating cat hair.

Full of disrespectful Covid deniers in the comments, while we are having a very big wave of Covid.

A video of AirFanta 4Lite filtrating smokes. 😎

I knew more tariff would come. So I shipped plenty AirFanta products to US when the tariff was still at 10% level. So we can stay with this price for a while until the stock runs out. Let's clean the air and stay healthy.

How to install AirFanta 3Pro in one minute?👇

I would like to introduce you to the practice of laminar flow technology, which is not only currently in use but also an incredibly efficient solution for maintaining a clean environment in children's classrooms. Imagine installing a large laminar flow device on the ceiling, big enough to provide coverage for the entire classroom. This device generates a stream of clean air that descends from the ceiling to the floor, creating a protective layer of purity around the children. The innovative design of the classroom floor plays a crucial role in this system. Constructed on stilts, it allows the clean air to push any contaminated air downwards into the space beneath the floor. This air is then channeled through pipes, directing it back to the laminar flow device's intake, ensuring a continuous cycle of purification. Compared to traditional air purifiers, this technology is far more effective. It prevents the mixing of clean and polluted air, instead, acting like a piston to push out the impurities. Moreover, the flow direction from top to bottom will suppress the short distance spread of areosol. Currently, this type of device is predominantly used in superltern workshop within the semiconductor industry. However, I envision a future where such technology is commonplace in educational settings, ensuring a healthier and cleaner environment for our children to learn and grow.

It is the NB1.8.1 strain. It created third highest wave in China.

I have to say, AirFanta 4Lite is NOT a replacement for respirator. I will never encourge anyone to take off the respirator. Respirator is the most effective way to prevent Covid, on both aerosol and droplet. No other thing can replace respirator, including air purifer. Becasue air purifier can't stop the droplet infection. 4Lite is recommended in two scenes. 1. When you are wearing a respirator, using 4Lite will increase the fit factor and reduce the uncomfortableness like suffocating, hot. 2. When you really can't wear a respirator, like dinning, 4Lite can provide extra protection.

Amazon opened the presale for this. Estimated deliver time: end of April to beginning of May. amazon.com/dp/B0CXDPCR26

Tariffs won’t stop us—we’ll keep investing and innovating for better products. Here is the mold for the new product.

Another school term is about to start. I went to my kid's school to replace the filters. The four air purifiers still run very well after almost two years. With the windows widely open and the bad air quality here (PM2.5 is around 30, which is 5 times than the average in US), the filters can be clogged in 3 month.

It's cat time. Meet my cat Bao bao.

AirFanta wearable air purifier goes viral here in China. Our daily stock sells out in under 30 minutes. The first users have theirs already—some tested it with sodium saccharin. So far, so good! We'll get the English edition printed ASAP and start shipping to the U.S., Canada, EU, UK, and Australia soon.

This is not true. If you can read Mandarin, it clearly says "DRILL." Our local Covid Cautious Community is full of knowledgeable people, and we've never come across this information before. The Epoch Times is widely regarded as a CIA-backed media outlet with a history of propaganda against China.

This is a worthy question. The most important, the ill person should stay in separate room and avoid coming out. If you have only one air purifier, put it in the room of ill family member. If you have a second one, put it in the healthy member's room. If you have a third one, put it in the public place like living room. I recommend a family to have 2-3 air purifiers. In the long term, it is very normal that one of your family member got infected. You will need them. 3Pro is desiged to be able to give very high CADR immediately once you face this problem. The more CADR, the less chance to get infected. Many chinese covid cautious person have successfully protect their family members from being infected by one ill person in this way. I will translate some stories to you.

Someone is selling the AirFanta 4Lite on Amazon Canada too. But it has only two possiblities, fake ones or second hand ones. Because I am the only producer of it and all the necessary mold belongs to me. I can't complain to Amazon because it doesn't violate Amazon's policy. So please make sure that you are ordering from "Adam Wong".

Even before Covid, nurses were wearing masks. Suddenly they completely forgot this.

People are starting to receive AirFanta Wear.

We can't see PM2.5 with our eyes, but once you start filtering the air and see how much gets trapped in the filter, you'll never want to stop. It's much better for that dirt to be in the filter than in the lungs. teddit.net/r/AirPurifiers/co…

I often receive emails asking whether the cheaper "3Pro" sold on Amazon is from AirFanta. I would like to reiterate here that although this air purifier is also named "3Pro" and uses images identical to mine, it is actually a copycat product created by another seller. While some people have emailed me to inquire, I'm sure there are even more who purchased it without asking, assuming it was mine. They sold about 80 units last month. So please understand that when I provide after-sales service, I always ask to provide the order number. What’s more, the seller is running Amazon ads using the keyword "AirFanta." When users search with this term, their listing appears at the top, cleverly misleading customers into believing it’s the official AirFanta product. Unfortunately, there is little I can do about this. Since they are exploiting a gray-area strategy, it does not constitute direct infringement of my brand. Meanwhile, my patent—covering the quick-assembly structure I designed—has been pending for over two years and still hasn’t been granted. I sent a cease and desist letter to the company, but they didn't even bother to respond. I’ve read the reviews on their product page. One customer actually compared a genuine AirFanta 3Pro with the counterfeit one he/she purchased. The reviewer noted that its actual airflow is much weaker than the genuine AirFanta. However, the seller dishonestly labeled it with a higher CFM value—440 CFM, compared to our standard 413 CFM. Furthermore, I recognize the power adapter they use—it’s one of the lowest-quality types available in the Chinese market, with no safety certifications whatsoever. In contrast, both the power adapter and the AirFanta machine itself have passed the UL tests. Therefore, when shopping on Amazon, please make sure to choose products clearly labeled with the AirFanta brand and sold by "Adam Wong." Alternatively, a safer and more reliable option is to purchase directly through my official website: air-fanta.com.

We have always placed great importance on user feedback. I read every review on Amazon, Twitter, emails, Reddit, and Facebook, and make targeted improvements accordingly. Minor adjustments are implemented in the current model, while major changes are reflected in subsequent new models. Regarding our air monitor G2, the feedback has been genuine and primarily focuses on three aspects: The CO₂ readings require frequent manual calibration. The battery life is relatively poor. The screen brightness is insufficient. I am currently designing a new version of the monitor, which will address these three issues. We will use the same model of CO₂ sensor as the other brand. Additionally, it will include independent sensors for formaldehyde and VOC readings. An air monitor capable of accurately measuring particulate matter, CO₂, formaldehyde, and VOCs is generally sufficient to cover the most common indoor air pollution risks.