Always use only PowerLung Washe, a quality, non-abrasive, non-scouring solution, to clean your PowerLung. PowerLung Washe is especially formulated to clean your PowerLung without damaging it. Other cleaning solutions, like dishwashing liquid, can contain ingredients that cause undue wear and damage to the PowerLung resistance cell valves. Every PowerLung comes with cleaning instructions because keeping your PowerLung clean is an important part of keeping it functioning properly so you can always enjoy its benefits. Keeping you PowerLung clean also protects your warranty coverage. Assure your PowerLung remains clean and functions properly with regular use of PowerLung Washe.