What is the 3M N95 mask and how effective is it for COVID? The 3M N95 mask is a type of N95 respirator that is commonly used in healthcare settings. It is designed to filter out at least 95% of ...

If you’ve put your COVID face masks into retirement ... $20 at Amazon Made by the 3M company, these N95 respirator masks are NIOSH-approved to filter out at least 95% of certain particles ...