Polyurethane or Silicone

even during aerosol treatments

Raised markings allow for easy graduations measurement

this product is a great option for when you're out and about

Elastic waistband provides comfortable

Med Aire Alternating Pressure Pump and Pad System with Fixed Pressure Sold By:1 Each Polyurethane or SiliconeDrive Medical Med Aire Fixed Pressure Pump and Pad System, 78" L x 36" W x 2 1 2" H, 5 min. Pump Cycle Time, Latex Free Pressure pump and pad system has 130 individual bubble cells for maximum comfort and effectiveness. Quiet pump technology alternately inflates and deflates the air cells. 4 LPM pump produces consistent air flow and pressure over a 5 min. cycle time. Variable pressure setting on deluxe pump allows comfort setting for maximum comfort