The CDC suggests washing your hands for at least 20 seconds with soap and water. NIOSH approved NIOSH N95 there are many masks that are being given away at no cost. Harley Harley N95 masks review after all, it doesn't matter how good the mask itself is if it doesn't sit well on your face or you aren't able to breathe properly through it. If your mask is unclean for too long, you may experience shortness of breath or trouble breathing. If you're wondering where I can acquire free N95 masks in my location right now, check out this detailed guide. Purchase a respirator with a N95 or P100 filter that has been approved by the National Institute of Occupational Safety and Health ( NIOSH ) if you wish to protect yourself from particulate matter ( PM ) from sources other than wildfire smoke.