Adam Wong

@adamwong.bsky.social

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)

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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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.

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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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.

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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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)

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.

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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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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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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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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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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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)

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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