Filters: You can use any HEPA grade filters for easy DIY inserts. These include air purifier filters, vacuum filters, and air conditioning filters. Please note that you should not use filters with fiberglass materials. If you do not have any of these on hand, you can also use a coffee filter or paper towel.

• Dimensions: mask 8 1/4 inches by 3 inches, elastic 6 inches
• Materials: Outer layer 100% Cotton, Inner lining 100% Cotton
• Wash before use
• One size fits all
• Interior pocket for filter insert
• Elastic tie straps for stretch and easy adjustment
• Washable and reusable - hand wash or machine wash cold, lay flat to dry
  
• Non-medical grade
• Also available in kids size

Handmade with love in the USA