There is a popular video on Chinese Tiktok, a girl sharing her experience of getting diabetes after getting covid. She has almost none symptom except a little bit low temperature when tested positive of Covid. But then becomes thirsty and loosing weight. When she realised that it

There are two types of filters that used most. One is made of glass fibre, mainly used in industry field, typical in FFU(Fan Filter Unit). Its filtration efficiency won't decline after months of usage. The other one is polypropylene, which is mainly used in consumer field.

A small tip for AirFanta 3Pro users. The fans have a plastic grille itself to protect fingers being cut by the blades. The steel rings on top of the fans are mainly used to protect the plastic grille during transportation. But it will make extra resistance to the flows. If you

Another independent test on AirFanta 3Pro.

Hi, I am glad to inform you that Amazon approved the CARB certification, so 3Pro (updated version) is available on Amazon for US including California. 🔻The updated version has one difference. It has an independent speed controller, so that when you use power bank to run 3Pro,

Restocked.

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

The longevity of air filters is influenced by several key factors. You're likely familiar with the first two, but let's delve into the others: 1⃣Filter Quantity: It's intuitive that a greater number of filters can collect more dust, thereby extending their lifespan. 2⃣Air

HEPA + Carbon filters are restocked on Amazon US, Canada and AliExpress.

Zimi now has its own website to sell all models of masks. I personally use Zimi One. It has 150 fit factor on my face and very easy to breathe with.