Using with RC201, RC202, RC203, RC205, RC206, RC209 and assembling with a piece of sanitary face cloth on.  
NP305 CHEMICAL RESPIRATOR single cartridge, twin exhalation valve.  
NP306 CHEMICAL RESPIRATOR Twin cartridge, twin exhalation valve.  

Using with NP305, NP306 for low toxicity purpose only.  
RC201 for anti-dust.  
RC202 for organic vapours, mists and fumes.  
RC203 for spray painting and organic vapours.