Buzz
A standard surgical mask won't safeguard your lungs from wildfire smoke. If you're in a smoke-affected region, ensure you have the correct mask and understand its proper usage.
Which Masks Are Truly Effective?
Opt for masks capable of filtering tiny particles. Choose those marked P95, N95, or R95, as they block 95% of small particles when fitted correctly. Higher-rated masks like P100, N100, or R100 offer even greater protection.
The letter (P, N, or R) indicates the mask's resistance to oil, which is generally irrelevant for wildfire smoke protection. For further details, you can explore mask ratings here.
Masks are available at pharmacies, hardware stores, and stores specializing in painting supplies.
The following types of masks are not effective for protecting against wildfire smoke:
Surgical masks (typically square-shaped with ear loops) are designed to filter the air you exhale. They lack a proper seal to shield you from particles in the air you inhale.
Dust masks are ineffective against fine particles. These are often paper masks with a single strap and may be labeled as “comfort” or “nuisance” masks.
If a proper mask isn’t available, a dust mask is still preferable to nothing, as it can block larger particles. However, aim to acquire a suitable mask as soon as possible.
Masks have a limited lifespan, so it’s wise to stock up. Discard a mask if it becomes clogged with dust, torn, or damaged in a way that compromises its fit.
Proper Way to Wear Your Mask
If you have pre-existing respiratory conditions such as asthma or COPD, consult a healthcare professional to determine if wearing a mask is advisable. Masks can make breathing more challenging for your lungs.
First, ensure your mask has two straps, not just one. (The correct type of mask will have this feature.) Both straps should wrap around the back of your head, with one positioned above your ears and the other below. The mask should cover your nose and extend under your chin.
Next, ensure a tight seal. If there’s any gap between the mask and your skin, smoky air can enter when you breathe, rendering the mask ineffective. Adjust the mask to achieve a secure fit around all edges. Beards or stubble can interfere with the fit, and these masks are not available in sizes suitable for children.
Masks Are Not Foolproof Protection
A common mistake with masks is that people tend to stay outdoors longer in smoky conditions, believing they are fully protected. Remember, masks are not magical shields; continue to follow other safety measures.
Masks are effective only against airborne particles. Smoke can also contain harmful gases, which these masks are unable to filter out.
The California Department of Public Health advises staying indoors during poor air quality conditions. Keep doors and windows shut, use air conditioning with the fresh-air intake closed, and consider a HEPA filter to eliminate airborne particles. Avoid smoking, burning candles, and vacuuming, as these activities can disturb dust.
