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UniAir N95 Face Mask NIOSH Approved | Sourceortho PPE. The UniAir N95 Face Mask has been approved by NIOSH for over 15 years, so you can feel safe knowing you are purchasing a product you can trust. Compare to 3M N95 Model 8210. UniAir N95 Model SH9550 Features： Latex-Free headbands to reduce the possibility of users allergies to Latex.