Respirators harmful dust with exhalation valve Low-profile exhalation valve reduces heat build up near the face, improving the user's comfort level. This respirator is approved by NIOSH as an N95 respirator, meeting the NIOSH 42 CFR 84 respirator certification requirements. The mask's dual elastic str aps help keep it positioned properly on the face. Helps protect from exposures to harmful particulates, such as those created during the sanding or sawing of wood, installing fiberglass insulation or sanding drywall. Produced without latex for users who h ave sensitive skin.Low-profile exhalation valve reduces heat build up near the face, improving the user's comfort level. This respirator is approved by NIOSH as an N95 respirator, meeting the NIOSH 42 CFR 84 respirator certification requirements. The mask's dual elastic str aps help keep it positioned properly on the face. Helps protect from exposures to harmful particulates, such as those created during the sanding or sawing of wood, installing fiberglass insulation or sanding drywall. Produced without latex for users who h ave sensitive skin.