Many people choose to wear an N95 mask as a way to reduce exposure to harmful viruses and airborne toxins or pollutants.

Every winter, as Delhi’s air thickens with smog, masks return as our go-to protection. They do help filter harmful particulate matter, but poor mask hygiene can ironically do more harm than good. A ...

NBC Select independently determines what we cover and recommend. When you click on or buy through our links, we may earn a commission. Learn more. Fewer people wear face masks than during the Covid-19 ...