| 5 to 1 conservig ratioUses single lumen cannula (35'max)Lightweight / Compact designSuperior sensitivity2 Standard AA size batteries includedConserving mode setting: 1, 1.5,2,2.5,3,4,5 & 6 LPMContinuous mode preset 2.5LPM (can be adjusted by RT if needed)Made in the USA |