Strong st-m70-3 silicone large orbit gas mask (without filter box)

ST-M70-3 is made of high quality silicone cover.
is anti-aging, anti allergy, durable and easy to clean.
uses double silicon gel edge to make it close to the face. The mouth and nose cover with corrugated design can meet the needs of different facial types.
quick button five point headband and double-layer silica gel make the face tightly clad, without allergic reaction;
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the lens adopts inner anti fogging and outer anti friction to ensure the perspective of the lens, and the mirror with three-dimensional humanized curve design has a wider field of vision;
the sound transmission device and wide field anti impact lens give the operator safety and comfort; the threaded interface can be equipped with a filter box according to the environment;
it meets the national standard gb2890-2009;
it can be equipped with two st-ldy filter boxes (or filter box) The poison box (in combination with st-yglm) is used for anti-virus (or dust and poison).
size: One size fits all