Rate Adjustable from 18 to 150 strokes/min while the ventilator is running Phase Ration 1:1 fixed Dimensions, H x L x W 25 x 32.5 x 15 cm (10 x 13 x 6 in) Weight 8 kg (18 lb) Power 115/230 VAC, 50/60 Hz Ventilator Small Animal Mouse Tidal Volume Adjustable from 0.2 to Adjustable from 0.05 to 30 ml/stroke while the 1 ml/stroke while the ventilator is running ventilator is running Port Size: ID 3.5 mm (1/8 in) 2.2 mm (0.086 in) OD 5 mm (3/16 in) 4 mm (5/32 in)