For a proper use and to fully preserve its features, the mask fabric must be treated as it follows:

Hand wash up to 20 times in 1 liter of water and 5 grams of sodium hypochlorite (ex.bleach for the E MASK white version, neutral sanitizer for the colored ones)

Rinse under running water

Let dry in the air

Iron front and back at 150 degrees, the recommended temperature for cotton