What is the difference between the masks?
Know the differences
Note: All masks should be replaced or cleaned when they are wet, damaged, visibly dirty,
contaminated (e.g., blood, respiratory fluids), or when breathing through it becomes difficult.
If re-using is permitted, be sure to clean the mask between uses.
KN95:
- Respirators are evaluated, tested
and certified by the National
Institute for Occupational Health
and Safety (NIOSH). - Respirators protect from exposure
to airborne particles, including
viruses. - Respirators are designed to seal
tight to the face of the wearer. - Generally single-use but
repurposing may be appropriate in
certain circumstances.
Follow the manufacturer’s instructions.
Medical grade masks
- Surgical masks are classified by
the American Society for Testing
and Materials (ASTM). - Surgical masks are a barrier to
spreading droplets and spit. - Are not designed to seal tight
against the face. - Generally single-use, but
repurposing may be appropriate
in certain circumstances.
Non-medical grade masks
- Non-medical masks help limit
the spread of droplets and spit
when you sneeze or cough. - Are not designed to seal tight
against the face. - can be used by the general public when
consistent physical distancing
is not possible, such as in
stores and shopping areas,
and on public transit.
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