Which one actually protects you on a smoggy day?
For fine pollution particles, a well-fitting N95 wins clearly. A cloth mask is better than nothing — but it was never built for fine smog.
Fit matters more than brand. A cheap, well-sealed mask protects better than an expensive one worn loosely.
N95 respirators filter at least 95% of airborne particles, including fine PM2.5. Pick it for commuting and long hours outdoors.
For a quick walk on a moderately hazy day, a soft cloth mask is a reasonable, low-effort option.
Press the nose clip snug and tighten the straps. Air should pass through the filter — not leak around your cheeks and nose.
A loose N95 loses its superpower. Gaps let unfiltered air straight in — and a damp, worn-out N95 filters worse, so replace it on time.
Commuter or cyclist in thick smog? N95. Short, low-exertion errand in moderate haze? Washable cloth — cheap and reusable for months.
Cloth is softer and easier for long wear; N95 can feel hot and restrictive. Trade comfort for protection when the air gets bad.
See the full comparison table, pros and cons, and best-use picks.