gas mask filter, respiratory protection

2. Sweep-back design can improve vision and comfort
3. Bayonet compatibility, can be used in combination with various half-masks and full-face designs
4. A wide range of applications, helping to reduce inventory requirements
5. Installation and use are very simple, reducing training needs 

701--Protect some organic vapors 

702--Protect against certain organic vapors, acid gasese 

703-- Protect against certain organic vapors, acid gases, ammonia, methylamine and formaldehyde