You do not need to clean the AirTouch N20 cushion every day. It is
recommended to replace your cushion every month. If any visible
deterioration of the cushion is apparent, the cushion should be discarded
and replaced. If required, wipe the outside of the foam cushion with
CPAP wipes or similar alcohol-free wipes and allow to dry. Do not store or
place the cushion in direct sunlight.