A lot of people are heading to their local pharmacy or department store to get their hands on a face mask. Free N95 masks free N95 masks delaware grinding and deburring can produce extremely hazardous dust. Anti Virus what type of N95 mask is best for coronavirus if you're concerned about airborne viruses, allergies, or other respiratory illnesses, you may be thinking about investing in an N95 mask. A fit test can be used to determine the effectiveness of a KN95 mask. What sets a N95 mask apart from a standard face mask is that it has a higher level of filtering. The CDC recommends, when particulate respirators are needed, that one of the following NIOSH-approved particulate respirators be worn: N95, N100, R100, or P100 Note that the R designation does not mean respirator.