- Scope of application
It is used for respiratory protection of all kinds of particulate matter, such as dust particles produced in mining operations, spraying rust removal, removal of impurities, fibre powder and other materials; micro-particulate matter produced by spraying, which does not produce harmful volatile gases; it can effectively filter and purify the inhaled abnormal odor (except toxic gases); it can help to reduce the special working condition ring. Exposure levels and hazards of some inhalable microbial particulates (such as fungi, anthrax, tuberculosis, etc.) in the environment.