This type of mask provides eye protection. Half-face mask covers the face from above the nose to below the chin. Selecting a Respirator. If an oxygen deficient atmosphere is known or suspected. If an IDLH condition exists.
Respirators are available in different sizes.
Always fit test a respirator to select the correct size. Using Respirators Safely. Make sure you have the correct respirator for the job. Inspect respirators before each use. If you are working in a dangerous area, have another person present.