The Yelloe 3 Ply Surgical face mask with ear loop is great for air-pollution, bacteria and dust protection. These are eco-friendly, non-woven, breathable and droplet absorbent. These perfectly filter the air when you are working in an area with a high concentration of air pollution, chemicals, dust, smoke, pollen, ash and clay. These are single-use mask and need to be disposed of after one use. It comes in a pack of 50. Disclaimer: The masks do not guarantee any protection from COVID-19 and any other disease. These are for general cover from dust, pollution and bacteria.