Your masks should be washed before each time they are used. If you need to wear a mask every day, we recommend getting multiple masks so you always have a fresh one on hand.
Lather masks with soap and scrub them for at least 20 seconds with warm to hot water and hang them to dry overnight.
For peace of mind, you can machine wash the mask on warm and tumble dry on high.
Iron your mask on high heat, with steam, taking care to avoid the nose wire as it can melt under high heat.