A respirator is designed to protect the wearer from inhaling harmful dusts, fumes, vapours, and/or gases. Respirators come in a wide range of types and sizes. It is critical that you select the respirator suited to your application, to ensure adequate protection is offered.  Respirators range from economical, single-use, disposable masks to reusable models with replaceable cartridges. CRG stock only disposable respirators, which purify air by forcing it through a filtering medium upon inhalation.