How to choose a mask to prevent smoke from burning straw?

Most of the flue gas produced by combustion is suspended particles of Pm0.5-PM 10. In particular, there are a lot of carcinogens in the gas produced by combustion. According to WHO research, the incidence of lung cancer increases by 4% every time the air pollution index rises by 10PPM. So take precautions. Protective masks should give priority to the national standard Gb2626 particle protection certification products, with QS quality and safety signs or LA safety protection certification, and do not use the three-no cottage products.

Disposable masks, as the name implies, cannot be cleaned. Their service time is 4- 10 hour. After that, the filtration efficiency decreases. At the same time, bacterial reproduction is harmful to health. The so-called antibacterial masks on the market are all false propaganda and have been exposed by the media many times, so frequent replacement is the only way. For reusable products, it is more economical to replace the filter membrane (usually electrostatic membrane) for long-term use.

One-time products with QS and LA certification, such as Nanhe (this is for the protection of the nuclear industry, very powerful! High protection requirements) 3M (this is a famous brand, but the price is not good, there are many fakes, so I can't afford to throw them away).

Reusable products, such as Ai Keli (the filter element can be replaced and cleaned for long-term use).

Under the microscope, the protective effect of spontaneous electrostatic substances on fine particles is magnified by 50 to 350 times.

The particulate matter used in the test is a dye, and PM0.07 is the finest.