Invacare 50 PSI Compressor Ideal for use with medications that require more flow and pressure to nebulize properly. Low-noise operation, easy-to-read pressure gauge. Non-marring rubber feet with suction-cups for stable operation. Durable piston compressor, UL and CSA listed, 115 VAC/60 Hz. Pressure range of 0-50 psi, with operating pressure of 7 lpm @ 23 psi nominal with a filtered nebulizer system. 8"L x 8"W x 10.5"H, 11.3 lbs. 1-year warranty.