Hi Helen. Thanks for your question. You can put these on the top rack of your dishwasher but also you can: - Remove the back rubber piece from the device. - Soak both parts for about 15 minutes in luke warm water with mild liquid detergent and shake gently. - Shake off excess water but importantly do not rub dry the Aerochamber. - Air dry in a vertical position. - Replace back rubber piece when completely dry. Do make sure you get a replacement from your GP/pharmacy every 6 months.
