ResPlus B-30P BiPap/AVAPS Machines provide effective, comfortable and quiet therapy for sleep apnea patients. The machine and heated humidifier is detachable to make it easier to travel in the included travel bag. A large capacity water chamber (300ml) will allow the user to get 1-2 nights of use before having to refill the water. The “auto-on” feature will sense breathing and start the machine automatically.