A cartridge-type humidifier apparatus embodying a separate heater module with a cylindrical opening for replaceably receiving therein disposable cylindrical humidifier cartridge modules. Certain upgraded embodiments of the cartridge modules are sterilizable and reusable several times before being disposed...http://www.google.es/patents/US4110419?utm_source=gb-gplus-sharePatente US4110419 - High-volume disposable and semi-disposable cartridge humidifier with self-contained cartridge sterilizing means, and related method
High-volume disposable and semi-disposable cartridge humidifier with self ...