No, the voluntary use of respirators in work atmospheres which are not hazardous does not require the respirator wearer to be fit tested. Note that if employers allow the voluntary use of elastomeric facepiece and powered air-purifying respirators (after determining that such use will not itself create a hazard), the employer must implement the elements of a written respiratory protection program necessary to ensure that employees voluntarily using such respirators are medically fit to do so, and that the respirator is cleaned, stored, and maintained so that its use does not present a health hazard to the user.