How to Properly Wear a KN95 Mask

Last updated: July 2026

Why Wearing Your KN95 Mask Correctly Matters

A KN95 mask rated for 95% or higher filtration can only deliver that protection when it's worn correctly. Even the best mask on the market will underperform if it's loose, improperly positioned, or missing a nose wire seal. The good news: putting on a KN95 mask properly takes less than 30 seconds once you know the steps.

Step 1: Start With the Right Size

Before anything else, make sure you're wearing the right size mask for your face. A mask that's too large will gap at the cheeks; one that's too small won't cover your chin properly. We offer KN95 masks in six sizes — XL, Large, Medium, Small, XS, and Kids. Use our Mask Size Guide to find your fit, or try our KN95 Sample Kit to test multiple sizes at once.

Step 2: Wash or Sanitize Your Hands

Always wash your hands with soap and water for at least 20 seconds, or use hand sanitizer, before handling your mask. This prevents transferring contaminants to the mask surface before you even put it on.

Step 3: Inspect the Mask

Before putting on the mask, do a quick visual check:

  • No tears, holes, or damage to the mask material
  • Ear loops are intact and not stretched out
  • Nose wire is present and flexible
  • The mask is not damp or soiled from a previous use

If the mask fails any of these checks, discard it and use a fresh one. See our guide on how to reuse a KN95 mask safely for more detail.

Step 4: Position the Mask

  1. Hold the mask with the nose wire at the top and the outside of the mask facing away from you.
  2. Cup the mask in your hand and place it over your nose and mouth.
  3. Loop the ear loops around your ears. If you're using our KN95 masks with adjustable ear loops, tighten each loop until the mask sits snugly against your face without pulling uncomfortably.
  4. Pull the bottom edge of the mask down so it sits under your chin, fully covering your nose, mouth, and chin.

Step 5: Mold the Nose Wire

This is the most commonly skipped step — and the most important one. Using both hands, press the metal nose wire firmly along the bridge of your nose. Work from the center outward, molding it to the contour of your nose and upper cheeks. A properly molded nose wire eliminates the most common source of air leakage.

Step 6: Perform a Seal Check

Once the mask is on, do a quick seal check before entering any high-risk environment:

  • Positive pressure check: Cover the mask with both hands and exhale sharply. You should not feel air escaping around the edges.
  • Negative pressure check: Inhale sharply. The mask should collapse slightly toward your face and stay there while you hold your breath.

If you feel air leaking, readjust the nose wire and reposition the mask, then repeat. For a full guide, see our article on how to fit test a KN95 mask at home.

What to Avoid

  • Don't touch the front of the mask while wearing it — the outer surface may be contaminated.
  • Don't pull the mask down to your chin while in a high-risk area and then pull it back up — this contaminates the inside.
  • Don't wear it under your nose — this bypasses the filtration entirely.
  • Don't double-mask over a KN95 — it can distort the seal and reduce effectiveness.

Removing Your KN95 Mask Safely

  1. Avoid touching the front of the mask.
  2. Remove by pulling the ear loops from behind your ears.
  3. If reusing, store in a clean paper bag in a dry location. If discarding, place directly in the trash.
  4. Wash or sanitize your hands immediately after removal.

Related Articles

Shop KN95 Masks

Ready to mask up the right way? Browse our full range of lab-tested KN95 masks in six sizes, including our popular adjustable ear loop style for a more customized fit. Not sure which size is right for you? Start with our KN95 Sample Kit.

Back to blog