If you check the link below. you can see many different masks for sale on amazon.
We have alot of different masks
See below:
Respirator
Gas
Dust
SmokeSafety
Full face respiratorHalf respirator
Respirator for moldRespirator for smoke
N95 Respirator
M40 GasM50 GasHalf GasCPAPCPAP Nasal
Airsoft gas
Woodworking dust