The shower protector prevents water from entering the tracheostoma in the shower. It has a 22-mm connector, and can be placed on a tracheostoma plaster or well-fitting tracheostoma button. It is not recommended to use a shower protector with a tracheostomy tube, as they rarely seal well enough to safely prevent water from entering the wind pipe. The shower protector is available from various manufacturers, all with minor design modifications. Some of them are shown here.
WARNING: The shower protector is not intended for use when swimming!