Cleaning Information: This chamber IS dishwasher safe. It should be cleaned by hand daily with warm water and a mild detergent; or in the dishwasher, on the top rack, once a week. Once clean it should be allowed to dry out completely, out of direct sunlight and/or heat, before reinstalling in your sleep therapy device. Replace as needed whenever the chamber appears damaged or worn. For complete instructions review the documentation that came with your equipment.