PRODUCT FEATURES: The oxymizer is the simplest conserving device available today, operating without electronics, batteries, switches or flow controls Reduces oxygen costs by up to 75% Allows you to obtain the equivalent of 7.5 liters from a 5-liter concentrator Eliminates the need to deliver and service two concentrators for your high-flow patients A close-coupled reservoir that fills with 20 mL of expired air at the initial phase of expiration, which is enriched or replaced with oxygen during the remainder of expiration PRODUCT SPECIFICATIONS:VENDOR: Drive MedicalVENDOR NUMBER: P-224PRODUCT ID: 22403900BRAND: Oxymizer®UPC: 0822383274508FOR USE WITH: All Oxygen Delivery SystemsSPECIFICATIONS: Pendant Style, Closed Couples 20ml Reservoir, Soft, Flexible, DisposableSHIPPING INFORMATION:HEIGHT: 1.12 InchWIDTH: 8.12 InchDEPTH: 12.75 InchWEIGHT: 0.45 lbs.