Masks – Smart Air
Masks are an effective way to protect yourself from airborne pollutants such as PM2.5, viruses, bacteria and allergens. In general, there are 2 common types of masks: surgical masks and respirators like N95 and N99 masks. DIY masks are also a popular option for when surgical masks and respirators are not available. Read more to learn if masks actually work, how long masks can be used, how to ...