If you are a medical professional or need a medical-grade face mask, ,Sai Safety SSWW378 is best for you. This disposable, single-use mask is made from pleated, 3-layered synthetic fabric. The breathable mark doesn’t form an airtight seal against the face. It weighs 40 g. This cost-effective, super-quality facemask gives you hundred percent protections from bacteria, dust, germs, and other impurities, without making a hole in your pocket.