Nasal Cushion & Silicone Seal for FlexiFit 407 CPAP/BiPAP Masks 1146413 It comes complete with an

It comes complete with an adjustable shoulder strap for ease of use

They help to filter any dust and debris in the air around you from getting into your concentrator

The simple to use H2O 4 CPAP Distilled Water System rids tap water of calcium

Having an external battery charger is great for people who have extra concentrator batteries as it allows you to keep all batteries fully charged and rotated to maximize their usable life

sturdy design meets all FAA requirements for carry-on luggage

Nasal Cushion & Silicone Seal for FlexiFit 407 CPAP/BiPAP Masks 1146413 It comes complete with anThis FlexiFoam Cushion & Silicone Seal Pack is designed for use with all FlexiFit 407 (HC407) Nasal CPAP and BiPAP Masks. This updated design features a more contoured shape to better fit a wider range of users.