General Purpose Disposable Dust Masks
Purpose: Personal protective equipment to prevent or reduce the dust in the air from entering the human respiratory organs to protect life safety;
Material: Most of the current dust masks are constructed with two layers of non-woven fabric inside and outside, with a filter cloth (melt blown cloth) in the middle layer;
Filtration principle: Filtering fine dust mainly depends on the filter cloth in the middle. Because the melt blown cloth has the characteristic of static electricity, it can absorb small particles. Because the fine dust is adsorbed on the filter cloth, and the filter cloth with static electricity cannot be washed with water, the dust masks are all disposable.
Remarks: The international requirements for the use of dust masks are quite strict. Dust masks belong to the first level in personal protective equipment, which is higher than earmuffs and protective glasses.