Surgical masks are 510K FDA approved to prevent blood spillage to a certain extent. If you are a doctor or dentist, you will need to wear a surgical mask if your environment is exposed to blood.
N95 medical mask
N95 medical mask
N95 masks General usage
N95 medical mask
N95 Face Mask GIKO 1400 Surgical N95 Respirator With 510K Cleared
N95 masks General usage
N95 medical mask