Designed and tested by Pawprint Oxygen , the leaders in oxygen therapy for pets Acheive 25-60% oxygen saturation using the venturi system Built-In vents keeps the chamber safe from heat, humidity and cO2 build up Foldable and easy to store, sets up in minutes - complete with carry case Requires a 5L Medical grade oxygen concetrator for oxygen supply. Oxygen concentrators that do not require an RX are not recommended for pet use.