How to Choose the Right Mask: Fit is the Key

Wearing a mask is part of your daily routine, and besides how well its filter works, a mask fit is just as important.

Why Fit Matters

Air always goes through the easiest path. Any gaps in your mask let air—and germs—bypass the filter.

• Poor fit → Protection may drop to only 10–30%.
• Good fit → Protection can reach 95% or more.

How to Pick the Right Mask

1. Know Your Needs
   • Everyday protection: Go for medical-grade masks (ASTM or EN14683 certified).
   • High-risk situations (dust, viruses): Choose N95 or FFP2/FFP3 masks.
2. Check the Certification
   • US Standard (NIOSH): N95 masks need a fit test to make sure they seal properly.
   • European Standard (EN 149): FFP2/FFP3 masks have rules about how much air can leak.

   Both standards focus on a tight seal against your face—that’s what really keeps you protected.

3. Make Sure It Fits
   • Try different styles or sizes to find one with no visible gaps.
   • Facial hair can stop a mask from sealing—shaving helps.
4. Test the Fit

   Cover the mask with your hands and breathe in and out. If you feel air leaking from the edges, adjust it.

Key Takeaways

Don’t just look at the mask’s grade or filter material—make sure it fits your face well.

Meeting certification standards (US N95, EU FFP2/FFP3, medical ASTM/EN) is important, but fit is what really protects you.

Pick the right mask and wear it properly to stay safe!