Strong st-fdl half mask (silicone) with ldy3 filter box

The main body is made of high-quality silicone material, which is comfortable and durable;
one way breathing valve, which can effectively reduce breathing resistance and head and neck pressure;
spiral poison filter box, 4 options, convenient handling and long use time;
elastic band The head band combination can reduce the pressure on the neck, and it is not easy to produce a sense of pressure when wearing for a long time, which affects the wearing of other protective products;
La logo in line with the industry standard, which meets the national standard gb2890-2009;
the volume concentration of toxic gas in the environment is less than 0.1%; the volume concentration of oxygen in the air is not less than 18%.
size: One size fits all