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Air purifiers are an important tool for protecting your respiratory health. That’s why it’s important to have some relevant knowledge. I’ve written another blog post, “Are H13 Air Purifier Filters Always Better?” I hope it helps. air-fanta.com/blogs/all/ar...

air-fanta.com

Are H13 Air Purifier Filters Always Better?

When buying an air purifier, “H13 medical-grade HEPA” has become an almost standard marketing claim. But I have to tell you: H13 is not a good choice for a Room air purifier. The filter grade describe...

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Adam Wong @adamwong.bsky.social · 03/11/2025

Hey everyone, I'm excited to share that AirFanta Wear is now live on air-fanta.com/products/air... You'll find a thorough product breakdown and a detailed video I made explaining a lot of things about it. (1/3)

air-fanta.com

AirFanta Personal Wearable Laminar Air Purifier

The AirFanta Wear is a personal wearable air purifier. Worn around the neck, it delivers a stream of HEPA-filtered air directly to your breathing zone, creating a personal bubble of clean air. Third-p...

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Adam Wong @adamwong.bsky.social · 09/07/2025

⏰Save 10% on ALL Airfanta products for 4 days only (July 8–11)! Shop: air-fanta.com

air-fanta.com

AirFanta air purifiers

Official website of AirFanta air purifiers.

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Adam Wong @adamwong.bsky.social · 19/06/2025

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

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Adam Wong @adamwong.bsky.social · 22/05/2025

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)

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Adam Wong @adamwong.bsky.social · 09/05/2025

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. 🧵

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Adam Wong @adamwong.bsky.social · 11/03/2025

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.

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Adam Wong @adamwong.bsky.social · 10/03/2025

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)

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Adam Wong @adamwong.bsky.social · 10/03/2025

Update: 1️⃣3Pro is restocked in UK. 2️⃣3Pro equipped with HEPA + Carbon filters are available in US. 3️⃣mini and replacement filters are available in Australia. All of them can be ordered on Amazon or our website air-fanta.com.

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Adam Wong @adamwong.bsky.social · 10/03/2025

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.

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Adam Wong @adamwong.bsky.social · 06/03/2025

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.

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Adam Wong @adamwong.bsky.social · 25/02/2025

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. (1/2)

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Adam Wong @adamwong.bsky.social · 14/02/2025

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.

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Adam Wong @adamwong.bsky.social · 09/02/2025

AirFanta's UK shop is now open. www.amazon.co.uk/stores/page/...

amazon.co.uk

AirFanta

AirFanta air purifier

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Adam Wong @adamwong.bsky.social · 05/02/2025

Now sellers from China are charged 30% tariff + $3 for each parcel. Prices for lots of stuff in US will go up soon. AirFanta currently has some stock in the US, and we will maintain the same pricing until the inventory is depleted. We'll assess the additional costs once the tariff impact is clear.

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Adam Wong @adamwong.bsky.social · 24/01/2025

AirFanta 3Pro is temporary out of stock on Amazon US for about two weeks. But we have some stock on our website air-fanta.com.

air-fanta.com

AirFanta air purifiers

Official website of AirFanta air purifiers.

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Adam Wong @adamwong.bsky.social · 21/01/2025

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)

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Adam Wong @adamwong.bsky.social · 18/01/2025

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

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Adam Wong @adamwong.bsky.social · 09/01/2025

For people who need very powerful air purifier to deal with the smoke, we made 5% discount on AirFanta 3Pro now. And next week when the carbon filters arrive, we will put them on sales too. air-fanta.com/products/air...

air-fanta.com

AirFanta 3Pro

Air purifier for house up to 3100 square feet (288 square meter), CADR super large 413cfm (702 m3/h) , collapsible and portable, can be packed into a 20" suitcase.

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Adam Wong @adamwong.bsky.social · 08/01/2025

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

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Adam Wong @adamwong.bsky.social · 03/01/2025

Since the media no longer covers COVID, 99.9% of people assume it is no longer a concern. As a result, the nasal spray SA55 is unlikely to be launched, as there is no longer a significant market for it.

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Adam Wong @adamwong.bsky.social · 30/12/2024

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.

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Adam Wong @adamwong.bsky.social · 28/12/2024

I want to run ads to promote it, but seems bluesky doesn't get ads. air-fanta.com

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Adam Wong @adamwong.bsky.social · 21/12/2024

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.

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Adam Wong @adamwong.bsky.social · 20/12/2024

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.

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Adam Wong @adamwong.bsky.social · 18/12/2024

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.

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Adam Wong @adamwong.bsky.social · 17/12/2024

To calculate how often the filters in the 3Pro need to be replaced when running 24/7, use the following formula: Number of months = 13,000 / (CFM) / (PM2.5 concentration in μg/m3) Where: - CFM is the airflow rate the 3Pro is providing. (1/3)

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Adam Wong @adamwong.bsky.social · 13/12/2024

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)

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Adam Wong @adamwong.bsky.social · 10/12/2024

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?

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Adam Wong @adamwong.bsky.social · 09/12/2024

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 and how to use them correctly. (1/5)

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Adam Wong @adamwong.bsky.social · 06/12/2024

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)

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Adam Wong @adamwong.bsky.social · 05/12/2024

FYI, here is AirFanta products availability on 15th Dec 2024.

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Adam Wong @adamwong.bsky.social · 04/12/2024

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. (1/6)

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Adam Wong @adamwong.bsky.social · 04/12/2024

Yes, The "Adam Wong" there is me. 😜

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Adam Wong @adamwong.bsky.social · 03/12/2024

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.

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Adam Wong @adamwong.bsky.social · 02/12/2024

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)

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Adam Wong @adamwong.bsky.social · 02/12/2024

Here is the full document: cdn.shopify.com/s/files/1/08... The brief test method is also in the document.

cdn.shopify.com

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Adam Wong @adamwong.bsky.social · 02/12/2024

I made a new video to show not only how powerful the AirFanta 3Pro is, but also how compact and portable it is.

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Adam Wong @adamwong.bsky.social · 28/11/2024

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.

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Adam Wong @adamwong.bsky.social · 28/11/2024

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

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Adam Wong @adamwong.bsky.social · 23/11/2024

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.

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Adam Wong @adamwong.bsky.social · 23/11/2024

Some good news here. 1. Amazon finally approved our 4Lite to available for California. You can order it from amazon.com or air-fanta.com. 2. We have some 4Lite arrived in Amazon UK, you can order it from amazon.co.uk. Just in time for the Black Friday. 😀

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Adam Wong @adamwong.bsky.social · 23/11/2024

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.

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Adam Wong @adamwong.bsky.social · 22/11/2024

Two and a half month ago, I convinced the kindergarten to accept my dontation of two units of AirFanta 3Pro in my daughter's classroom. Today my wife went to the kindergarten and found out that the they were off. The teacher said that she doesn't believe that it will help reduce the risk. 🤔

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Adam Wong @adamwong.bsky.social · 21/11/2024

It is #BlackFridayDeals. Now AirFanta provides 5% discount on our website and also on Amazon. air-fanta.com Also we have some other good news. Now we have some 3Pro available in UK. (1/2)

air-fanta.com

AirFanta air purifiers

Official website of AirFanta air purifiers.

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Adam Wong @adamwong.bsky.social · 17/11/2024

Hi everyone, I am a Covid cautious Engineer. I own a small business of design and manufacture highly effective, rigorously tested, always evolving and competitively priced air purifying & measurement tools. (1/3)

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Reposted by Adam Wong

Jillian Buriak @jillianburiak.bsky.social · 16/11/2024

Impressed by the AirFanta HEPA air purification unit by @adamwong.bsky.social. Wanted something to bring on planes - it disassembles easily and fits into backpack. Electrical engineer husband is raving about the electrical controller.

Man holding an AirFanta air purifier with one hand to show how light it is. It is box-shaped and has 4 PC fans on the top.

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