CHAD Bonsai Velocity Pneumatic Oxygen Conserver Diathermy Deep Heat Units 75 * Weight Capacity: 250 Wall Transformers 75 * Weight Capacity: 250 lb * Wheel Size: 8 * Product Weight: 22 lb * Carton Dimensions: 25 x 10 Scrub Shirt X Large Green Without Pockets Short Sleeve Unisex Delivers a uniform oxygen pulse at increments: 1 2 3 4 5 and 6 * Two continuous flow (CF) settings preset @ 2 LPM and 4 LPM * Delivers up to a 6:1 savings ratio from 14 40 breaths per minute * Senses a breath delivers oxygen in the first half of the inspiratory cycle * Operating pressure range: 200 3000 PSI * Light weight and quiet operation * Easy to operate single selector knob * Compact design fits easily in virtually any oxygen carry bag *