Protekt Aire 4000 Pump. * High flow pump with 8 liters of air per minute. * Adjustable comfort settings allows pressure to be customized according to each patients therapeutic requirements. * Low pressure alarm indicates when the pumps airflow many be compromised. * Low pressure alarm mute button. * Static function for safe and easy patient transfer. * UL/CSA approved power cord. * Specifications: Weight Capacity: 350 lbs. Dimensions: 11 x 8 x 4 Weight: 6.2 lbs.