Why Surgical Masks Do Not Protect You from Haze

When haze hits, choosing the right mask is only half the battle; ensuring it fits properly is what actually keeps those fine particles out. Malaysia's Ministry of Health (MOH) recommends using a genuine, well-fitting particulate respirator like an N95 to reduce exposure to fine airborne particles, as standard surgical masks are not designed to filter them .

Why fit is more important than the mask type

A respirator only works if air is forced through the filter material rather than leaking around the edges. If there are gaps around your nose, cheeks, or chin, you aren't getting the intended protection . Facial hair is a common culprit for poor seals, as beards or moustaches can prevent the mask from sitting flush against your skin .

Steps for a proper seal

Before heading out, inspect your mask for any tears or damage. Place the respirator over your nose and mouth, then secure the straps according to the manufacturer's instructions . If your mask has a nose clip, press it firmly to shape it to your face. Finally, perform a user seal check by breathing in and out to ensure no air is escaping around the edges .

Who should be cautious

Respirators increase breathing resistance, which can cause discomfort, tiredness, or headaches. The MOH advises that N95 masks are not suitable for children or pregnant women . Additionally, those with chronic lung or heart conditions should consult a doctor if they feel uncomfortable while wearing one . As a past example from 2016, health authorities noted that individuals should take breaks if they experience any breathing difficulties .