The G1 Air-Purifying Respirator (APR), hereafter referred to as respirator or device, is an air-purifying respirator for use in atmospheres which are not immediately dangerous to life or health (non-IDLH). Inhaled air is pulled through the air filtration cartridge(s)/canister, which contain adsorbents and a filter that removes or neutralizes specific contaminants. Exhaled air is released through the exhalation valve. This device is intended for applications where it is necessary for users to go into or work within a hazardous area for a limited time.
The facepiece is available in three sizes (small, medium, large). The nosecup is available in two designs (CBRN and non-CBRN) and three sizes (small, medium, large). The facepiece includes a large lensto optimize field of view and a mechanical speech diaphragm to enhance speech
communication. When the facepiece is not connected to the APR adapter, an opening in the facepiece connection lets airflow bypass the inhalation and exhalation valves, which
decreases breathing resistance and further enhances speech communication. The facepiece includes a broad range of head harness designs and material options. An optional spectacle kit is available.