Does the electric air supply anti-virus and dustproof mask have any effect?

Of course it works. In fact, the core part of the mask is the filter. Traditional masks can only block some pollutants and give you some knowledge about popular science:

1, disposable 3-layer non-woven medical mask

Function: It can filter particles in the air and block droplets and secretions.

Where can I buy it? Ordinary pharmacies and Taobao shops. The price of pharmacies is generally around 4 yuan.

Advantages: relatively breathable, light weight, easy to carry and cheap.

Disadvantages: the effect of blocking dust particles is not good, and it can only be used once.

2. Pure cotton gauze mask (4 layers, 12 layers, 16 layers)

Function: it can filter some air particles, block droplets and secretions, and has strong adsorption capacity.