The most dust-proof mask brands are as follows:
MEO’s most innovative anti-smog mask from New Zealand has attracted much attention recently. MEO has super filtration capabilities. Its patented Alpuro filter element (formerly "HELIX" filter element) can effectively filter 99.99% of suspended bacteria in the air and 98% of ultra-fine harmful particles larger than PM0.1. MEO's filter element is made from wool specially cultivated in the South Island of New Zealand. It has super air permeability. Experiments have shown that its air permeability is 3-5 times that of ordinary filter elements.
Xichuang brand was established in 2000. It is a mask production brand from Jingzhou City, Hubei Province, and is also a well-known brand in the domestic respiratory protective equipment industry. It mainly produces special respiratory protective equipment products, including dust masks, gas masks, protective filter elements, etc.