Making process of active gauze mask capable of filtering out pathogenic microorganism
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 中国科学院武汉植物研究所
- Publication Date
- 2003-11-05
- Estimated Expiration
- Not applicable · inactive patent
Abstract
Description
technical field
[0001] The invention relates to a preparation method of an active mask capable of filtering pathogenic microorganisms. The mask is suitable for people in areas with infectious diseases, especially for people engaged in infectious viruses. Background technique
[0002] In order to prevent external harmful substances from entering the respiratory system, increasing the density and thickness of the filter layer of the mask can improve the effect of dust-proof filtration. Some use electrostatic filter cotton (such as 3M protective masks), and some use activated carbon (large breathing resistance, It can only absorb lipophilic substances) and other adsorption media to increase its adsorption capacity, and can also adsorb some harmful gases. The function of general medical mask can be divided into two kinds, one is to avoid passive infection (such as the N95 mask of American Megatech Scientific Co., Ltd. and the FFP1 and FFP2 masks passed by ...