Made of high quality natural rubber, has good physical and mechanical properties, gas resistance and aging resistance, non-toxic and non irritating.
The lens with waterproof cover design, to ensure that the mask in the use of transparent lens performance. Face screen with open industry, good optical, impact resistance.
With automatic adjustment, proper tightness, comfort and versatility.
The call of good performance, clear sound. The utility model can be directly provided with a 2 stage filter element, and can also be connected with the 3 stage and the second stage filter element through the air guide pipe