Delivering Up To 5 Lpm With High Oxygen Purity Across All Flow Rates This Compact Concentrator Helps Increase Patient Comfort And Lower Operating Costs * Visual And Audio Alarms For Low Oxygen Levels Power Failure Pressure Drop And Service Required * Auxiliary Oxygen Port Allows Use With Compatible Trans-filling Devices * This Unit Has Been Upgraded As Follows: * Upgraded Base Design Which Includes: * New Material Which Is More Resistant To Chemical & Environmental Degradation * Increased Wall Thickness To Reduce The Risk Of Physical Damage (cracking Etc.) To The Base And Casters * New Caster Design Which Includes Longer Connecting Stems Improved Fit And Durability * Longer/larger Sieve Beds Which Improve Overall Sieve Bed Performance And Increase The Bed Useful Life * Upgraded Compressor Cup Seal Material With Greater Heat Resistance Which Extends Life Of Compressor Cup Seals Improving Overall Compressor Performance * Use Of Brass Screw Inserts And Machine Screws At All Cabinet Connection Points Which Improves The Overall Stability And Durability Of Concentrator Shell * Reduced Internal Operating Temperature (through Various Component And System Updates) Which Extends Product Life By Reducing Wear On Key Internal Components Product Warranty 3 Years For New Units Sold On Or After January 4 2011 * Exclusive Devilbiss Osd (oxygen Sensing Device) Standard On Every Unit -- Increases Accuracy And Reliability For Longer Service Intervals * Noticeably Quiet Operation * Readily Accessible Patient Controls And Protected Cannula Fitting * Two-year Dealer Service Interval * Recessed Humidifier Nook Prevents Damage * Easy To Assemble/disassemble Two-piece Cabinet For Ease Of Maintenance * Lockable Flow Meter - Pediatric Flow Meter Available * Convenient Top And Side Handles For Easy Transport * Accommodates Up To A 50-foot Cannula (15.3 Meters) * Intake Filter Features A Translucent Back To Allow Technician To Quickly Determine If The Filter Is Dirty * Alarms: High/low Pressure Low Flow Low Oxygen Power Fail Oxygen Sensing Device * Power Consumption: 310 Watts (270 Watts @ 2.5 Lpm Or Less) * Works With The Invacare Home Fill Cylinders * Accessories Such As Masks Cannulas Etc. Are Not Included