Adam Wong
@adamwong.bsky.social
In here, the latest wave of COVID-19 has passed its peak at end of May. This wave is mainly caused by NB.1.8.1. This is the sixth wave as from the moment the ZERO Covid Policy is cancelled end of 2022.
Source: CDC
t.co/uAebeaKT7T
Source: CDC
t.co/uAebeaKT7T
June 19, 2025 at 2:47 PM
In here, the latest wave of COVID-19 has passed its peak at end of May. This wave is mainly caused by NB.1.8.1. This is the sixth wave as from the moment the ZERO Covid Policy is cancelled end of 2022.
Source: CDC
t.co/uAebeaKT7T
Source: CDC
t.co/uAebeaKT7T
Why Proper Positioning of 4Lite Matters
I created a video demonstrating the importance of aligning the middle of 4Lite directly toward your face for optimal effectiveness.
Here’s what the test results showed when the background PM2.5 level was 14 μg/m3:
🧵(1/2)
I created a video demonstrating the importance of aligning the middle of 4Lite directly toward your face for optimal effectiveness.
Here’s what the test results showed when the background PM2.5 level was 14 μg/m3:
🧵(1/2)
May 22, 2025 at 7:59 AM
Why Proper Positioning of 4Lite Matters
I created a video demonstrating the importance of aligning the middle of 4Lite directly toward your face for optimal effectiveness.
Here’s what the test results showed when the background PM2.5 level was 14 μg/m3:
🧵(1/2)
I created a video demonstrating the importance of aligning the middle of 4Lite directly toward your face for optimal effectiveness.
Here’s what the test results showed when the background PM2.5 level was 14 μg/m3:
🧵(1/2)
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.
🧵
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.
🧵
May 9, 2025 at 2:31 PM
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.
🧵
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.
🧵
There’s a lot of debate over which filter level is best—H13 or MERV13. Commercial brands often claim H13 is superior, while CRbox suggests MERV13 is the better option. (1/7)
March 10, 2025 at 5:18 PM
There’s a lot of debate over which filter level is best—H13 or MERV13. Commercial brands often claim H13 is superior, while CRbox suggests MERV13 is the better option. (1/7)
I created a 3D printed prototype of the aesthetic edition of the 3Pro version 1.2. It retains the same size, is easier to install, and includes a PM2.5 sensor, a screen, and an app for phone control. Please disregard the color, as the final product will feature a different color.
March 10, 2025 at 8:16 AM
I created a 3D printed prototype of the aesthetic edition of the 3Pro version 1.2. It retains the same size, is easier to install, and includes a PM2.5 sensor, a screen, and an app for phone control. Please disregard the color, as the final product will feature a different color.
There is 10% discount for the AirFanta 4Lite in the EU on Amazon DE and our website air-fanta.com/products/air....
It is designed to blow clean air to your face for breathing.
It is designed to blow clean air to your face for breathing.
March 6, 2025 at 1:35 PM
There is 10% discount for the AirFanta 4Lite in the EU on Amazon DE and our website air-fanta.com/products/air....
It is designed to blow clean air to your face for breathing.
It is designed to blow clean air to your face for breathing.
Some customers prefer the 3Pro with HEPA+Carbon filters. We've already shipped a few to the US, and it can be ordered through our website at air-fanta.com.
February 14, 2025 at 2:20 PM
Some customers prefer the 3Pro with HEPA+Carbon filters. We've already shipped a few to the US, and it can be ordered through our website at air-fanta.com.
I am working on designing the better AirFanta 3Pro. It has been revised a lot since we found lots to improve on the first prototype.
It has aesthetic looking, a PM2.5 sensor, a TFT screen and APP via Bluetooth connection. It is also detachable like the 3Pro and even easier to install. (1/4)
It has aesthetic looking, a PM2.5 sensor, a TFT screen and APP via Bluetooth connection. It is also detachable like the 3Pro and even easier to install. (1/4)
January 21, 2025 at 7:43 AM
I am working on designing the better AirFanta 3Pro. It has been revised a lot since we found lots to improve on the first prototype.
It has aesthetic looking, a PM2.5 sensor, a TFT screen and APP via Bluetooth connection. It is also detachable like the 3Pro and even easier to install. (1/4)
It has aesthetic looking, a PM2.5 sensor, a TFT screen and APP via Bluetooth connection. It is also detachable like the 3Pro and even easier to install. (1/4)
The west Covid Cautious Community has joined into RedNote, and the local Covid Cautious Community are talking with them directly.
January 18, 2025 at 8:32 AM
The west Covid Cautious Community has joined into RedNote, and the local Covid Cautious Community are talking with them directly.
An update of the stock situation.
🔹US: everything is restocked on Amazon US and air-fanta.com.
🔹Canada: 3Pro and mini are restocked on Amazon CA and air-fanta.com
🔹Australia: 4Lite, mini and the replacement filters are restocked on Amazon AU and air-fanta.com
🔹US: everything is restocked on Amazon US and air-fanta.com.
🔹Canada: 3Pro and mini are restocked on Amazon CA and air-fanta.com
🔹Australia: 4Lite, mini and the replacement filters are restocked on Amazon AU and air-fanta.com
January 8, 2025 at 8:40 AM
An update of the stock situation.
🔹US: everything is restocked on Amazon US and air-fanta.com.
🔹Canada: 3Pro and mini are restocked on Amazon CA and air-fanta.com
🔹Australia: 4Lite, mini and the replacement filters are restocked on Amazon AU and air-fanta.com
🔹US: everything is restocked on Amazon US and air-fanta.com.
🔹Canada: 3Pro and mini are restocked on Amazon CA and air-fanta.com
🔹Australia: 4Lite, mini and the replacement filters are restocked on Amazon AU and air-fanta.com
There is metal grill on each filter.
January 8, 2025 at 4:51 AM
There is metal grill on each filter.
Covid-cautious community understands that CO2 levels serve as a proxy for Covid risks, as it indicates the amount of secondhand air in a room. Lower CO2 level typically means better ventilation and reduced risk.
December 30, 2024 at 9:12 AM
Covid-cautious community understands that CO2 levels serve as a proxy for Covid risks, as it indicates the amount of secondhand air in a room. Lower CO2 level typically means better ventilation and reduced risk.
It would be astonishing to create a video showing me breathing normally with my head inside a transparent glass sphere filled with tear gas, with the help of the new AirFanta wearable air purifier.
December 21, 2024 at 3:37 PM
It would be astonishing to create a video showing me breathing normally with my head inside a transparent glass sphere filled with tear gas, with the help of the new AirFanta wearable air purifier.
The prototype of AirFanta wearable air purifier can pass the saccharin fit test. I don't taste the sweet with it covering my nose and mouth but the people who took the photo can taste a strong sweet.
December 20, 2024 at 7:58 AM
The prototype of AirFanta wearable air purifier can pass the saccharin fit test. I don't taste the sweet with it covering my nose and mouth but the people who took the photo can taste a strong sweet.
This is the first year we experienced the "Black Friday" as a seller, so we underestimated the sales. Now 3Pro and replacement filters are out of stock in US. We are trying our best to restock asap.
Here is the availablity of AirFanta products and the estimated date to restock.
Here is the availablity of AirFanta products and the estimated date to restock.
December 18, 2024 at 3:31 AM
This is the first year we experienced the "Black Friday" as a seller, so we underestimated the sales. Now 3Pro and replacement filters are out of stock in US. We are trying our best to restock asap.
Here is the availablity of AirFanta products and the estimated date to restock.
Here is the availablity of AirFanta products and the estimated date to restock.
Here’s an intuitive illustration of the MERV filter levels by @jimrosenthal5.bsky.social. It shows a dip in filtration efficiency between 0.1 and 0.3 microns. However, microorganisms in the air typically range from 1 to 5 microns, with an average size of around 3 microns. (1/4)
December 13, 2024 at 5:32 PM
Here’s an intuitive illustration of the MERV filter levels by @jimrosenthal5.bsky.social. It shows a dip in filtration efficiency between 0.1 and 0.3 microns. However, microorganisms in the air typically range from 1 to 5 microns, with an average size of around 3 microns. (1/4)
I have a wearable prototype now. It is on the neck and with the clean flow covering the nose. It can remove more than 99% PM0.3 if you use it correctly.
How do you like it?
How do you like it?
December 10, 2024 at 1:21 PM
I have a wearable prototype now. It is on the neck and with the clean flow covering the nose. It can remove more than 99% PM0.3 if you use it correctly.
How do you like it?
How do you like it?
Here is an example of using varies of tools to create a "swiss cheese".
I ran an AirFanta 3Pro in my office, so for the whole room, the particle of 0.3 micron was 2702 pcs per liter, which was already 5% of outdoors. It means that the 3Pro already filtrated 95%.
(1/2)
I ran an AirFanta 3Pro in my office, so for the whole room, the particle of 0.3 micron was 2702 pcs per liter, which was already 5% of outdoors. It means that the 3Pro already filtrated 95%.
(1/2)
December 6, 2024 at 1:32 PM
Here is an example of using varies of tools to create a "swiss cheese".
I ran an AirFanta 3Pro in my office, so for the whole room, the particle of 0.3 micron was 2702 pcs per liter, which was already 5% of outdoors. It means that the 3Pro already filtrated 95%.
(1/2)
I ran an AirFanta 3Pro in my office, so for the whole room, the particle of 0.3 micron was 2702 pcs per liter, which was already 5% of outdoors. It means that the 3Pro already filtrated 95%.
(1/2)
FYI, here is AirFanta products availability on 15th Dec 2024.
December 5, 2024 at 2:36 PM
FYI, here is AirFanta products availability on 15th Dec 2024.
We asked the lab to translate the report of virus removal test of AirFanta 3Pro (an early edition) in a 30 cubic meter test chamber, which was done in 2023.
It has the same result with the bacteria removal test, that none virus was found after 60 minutes.
Thread (1/2)
It has the same result with the bacteria removal test, that none virus was found after 60 minutes.
Thread (1/2)
December 2, 2024 at 5:26 PM
We asked the lab to translate the report of virus removal test of AirFanta 3Pro (an early edition) in a 30 cubic meter test chamber, which was done in 2023.
It has the same result with the bacteria removal test, that none virus was found after 60 minutes.
Thread (1/2)
It has the same result with the bacteria removal test, that none virus was found after 60 minutes.
Thread (1/2)
I made a new video to show not only how powerful the AirFanta 3Pro is, but also how compact and portable it is.
December 2, 2024 at 8:08 AM
I made a new video to show not only how powerful the AirFanta 3Pro is, but also how compact and portable it is.
Please regularly check the filters in the AirFanta 4Lite. If your filter looks as dirty as the one shown in the picture, I highly recommend replacing it. A dirty filter significantly reduces filtration efficiency, which is crucial for laminar flow air purifiers that depend on a single filtration.
November 28, 2024 at 6:01 PM
Please regularly check the filters in the AirFanta 4Lite. If your filter looks as dirty as the one shown in the picture, I highly recommend replacing it. A dirty filter significantly reduces filtration efficiency, which is crucial for laminar flow air purifiers that depend on a single filtration.
We sent an AirFanta 3Pro to a certified microbiology lab to test the efficiency of removing microorganism in the air. This time, the tests were carried out in 15, 30, 45 and 60 minutes to see the difference.
Here is the result.
Thread
Here is the result.
Thread
November 28, 2024 at 4:20 PM
We sent an AirFanta 3Pro to a certified microbiology lab to test the efficiency of removing microorganism in the air. This time, the tests were carried out in 15, 30, 45 and 60 minutes to see the difference.
Here is the result.
Thread
Here is the result.
Thread
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. and WORLD PEACE.
November 23, 2024 at 4:01 PM
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. and WORLD PEACE.