Did you know that masks are also divided into Oil Particle Proof and Non-Oil Particle Proof.
Wearing an N95 when buying fried chicken actually provides limited protection.
Generally, masks use electrostatic melt-blown methods, which use static electricity for adsorption. However, static electricity is afraid of moisture. Therefore, after the mask is started to be used, the filtration effect will continue to decrease, so it can only be used once.
The effect of electrostatic meltblown gradually degrades when encountering moisture, and the static electricity disappears directly when encountering oil and gas.
The daily living environment is full of oily particle pollution, such as automobile and motorcycle emissions, restaurant fumes, and manicures. If you wear a mask that does not prevent oily particles for fume protection, the effect will be very limited.