Consider wearing an N95 mask with no valves if you are in a closed environment such as hospitals or crowded areas. The Ministry of Health & Family Welfare in India warns against using N95 masks that have breathing valves.
Consider wearing an N95 mask with no valves if you are in a closed environment such as hospitals or crowded areas. The Ministry of Health & Family Welfare in India warns against using N95 masks that have breathing valves.