Air-separating device for using with a waterproof casing on appliances for personal needs has a gas-permeable, waterproof membrane and an admission port

摘要

An air-separating bush (10) has a gas-permeable, waterproof membrane (16,18) to close off an opening in a casing. First (16) and second (18) membranes are fitted crosswise in an admission port (24) set at a distance apart from each other.