Operates 1 hood style respirator or 2 tight fitting constant flow masks. Respirator requirements CAN NOT exceed maximum pressure of 15psiMaximum 10psi at 9cfm output, 9.5 cfm output at 4 psiElectric motor: 3/4 HP, ODP, 100-115/208-230 VAC, 12.2/6.1 amps, 50/60 Hz, 1 phase, thermally protected, CSA approved0.5-0.7 micron inlet and compressor filters0-30 psi pressure gaugePrewired with on/off switch and plug (115 VAC plug only)Approximate weight: 55 lbs.