What are the special precautions for tungsten powder poisoning?
At present, the standard of China's masks GB2626-2006 "self-priming filter-type anti-particulate respirator" will be divided into oil-based protective oil particles (fumes, oil mist, dust, smoke, fog, microbial) and non-oily particles (dust, ,microorganism)
Dust masks (can prevent: dust, smoke, fog, microbial) protection class KN100, KN95 and KN90 three grades, high dust, ultra-fine dust and fog explosion table, it is recommended to choose KN100 level
Dust masks must be GB2626-2006 "self-absorption filter-type anti-particulate respirator" certification. Mask material silicone, plastic, silicone material is relatively soft and comfortable, low pressure.
As the market masks brand models, not all masks can effectively protect the ultra-fine dust, therefore, need to choose a dust mask, in order to effectively avoid dust, haze, welding dust and other injuries.
If you do a good job breathing protection, it will not be inhaled metal dust. How to choose a dust mask is the key.
