Standard HumidX™ for AirMini™ Travel CPAP Machine Size:Three Pack The Inogen One G4 portable

The Inogen One G4 portable oxygen concentrator is designed for oxygen users who want a small

The single battery's compact size allows for easy fit in a backpack

regular replacement is recommended to maintain hygiene

🌜Expert Tip: Get this for $14

it allows you to move freely during sleep without added bulk

Standard HumidX™ for AirMini™ Travel CPAP Machine Size:Three Pack The Inogen One G4 portableHumidX and HumidX Plus cartridges are small heat and moisture exchangers that provide you comfort and effective humidification for most climates and sleep environments. Cartridges should be replaced after 30 days of use and are not suitable for washing. (Not compatible with F20 and F30 setup packs) HumidX is ResMed's standard waterless humidification system, suitable for most climates. HumidX Plus is intended for use in dry and high altitude