The device is automatic, continuous. Device accessories and consumables: Masks and air filters are sufficient for four to five years. Accessories and consumables: Device SD card. Heated electric tube. Three water tanks: equipped with a water vapor humidifier that prevents dryness of the respiratory membranes. Electric cable. Power adapter works on voltage from 110V to 250V. Travel bag. The power adapter works on 110 to 250 volts for ease of use during travel and while sleeping on the plane with a special travel bag for the device. Includes smart wireless Bluetooth connectivity to evaluate and monitor treatment progress via the DreamMapper app. Android and iOS Notes: The value of the four masks costs 6,000 riyals at Nahdi. The cost of the available filters costs more than 500 riyals. The cost of the electric tube costs about 600 riyals. The cost of water tanks costs about 400 riyals. Device source: United States of America. There are no defects with the device. Reason for sale: Another device was provided before receiving this device. The device is recertified and has not been used at all. Please ensure the recommendation for the device category and type is on the prescription issued to the patient. The image shown below shows the details Philips Respironics DreamStation Auto CPAP The Mask, nasal pillows, & Filters are provided here enough for at least a couple of years. Recertified Not used. . The Mask, mask pillows, & Filters are provided and enough for three upcoming years of use. The source of the device is the United States of America. Recertified Not used.