1. Individual protective articles to prevent or reduce dust from entering the respiratory organs of the human body so as to protect life and safety;
2. Material: Dust masks are mostly made of two layers of non-woven fabric inside and outside, and one layer of filter cloth (melt-blown cloth) in the middle.
3. Filtration Principle: Filtration of micro-dust mainly depends on the filter cloth in the middle. Because the melt-blown cloth has its own characteristics of static electricity, it can absorb very small particles. Because the dust is adsorbed on the filter cloth, and the filter cloth can not be washed by static electricity, so the dust mask is disposable.
4. Remarks: International requirements for the use of dust-proof masks are quite strict. Dust-proof masks belong to the first grade in personal protective equipment, higher than earmuffs and protective glasses. The more authoritative testing certification is CE certification in Europe and NIOSH certification in the United States.
It is mainly used in the working environment with low concentration of harmful gases and vapors. The cartridge contains only adsorbents or sorbents. Some cartridges are also equipped with a filter layer, which can prevent aerosol at the same time. Some military anti-virus masks are mainly made of activated carbon cloth, or water-resistant and oil-resistant fabric as the outer layer, glass fiber filter material as the inner layer, and activated carbon-impregnated polyurethane foam plastic as the bottom layer, which can provide temporary protection when suddenly attacked by toxic gases.
Hangzhou Demo Medical Technology Co.,Ltd
Address: Zhongce Garden,No.8 St, Hangzhou Eco And Tec Dev Zone, China
Tel: +86-571-87390575
Fax: +86-571-87390523
E-mail: info@demomedical.com
