Specifications: Washable & Reusable Layers- 2 Layers/2 Ply Material- Cotton Feel Fabric Washing Instructions: It is recommended to wash in warm to hot water with regular detergent Regular washing should be done along with regular usage Dry immediately after washing & make sure the mask is dry before using it These are not medical graded devices and are meant for personal use to stay safe, along with other safety & precautionary measures.