Strong st-fdlx half mask (rubber)

St-fdlx half face mask (rubber), without filter box;
the main body of st-fdlx is made of rubber, comfortable and durable;
the combination of elastic band and headband can reduce the pressure of head and neck, without affecting the wearing of other protective products;
the one-way breathing valve can effectively reduce the breathing resistance and eliminate the moist air in the mask.
size: One size fits all