Mask Interface - ResMed AirFit N30 Nasal Mask with No Headgear Size:Medium #64211 Always have a fully charged

Always have a fully charged spare battery with you

Enhanced comfort seat fits all shapes and sizes

Each rechargeable battery provides up to 4 hours of off-the-grid power for your POC giving you the extra time to really enjoy your day

Simple one-button operation

The elastic fabric headgear is designed to fit snugly

Mask Interface - ResMed AirFit N30 Nasal Mask with No Headgear Size:Medium #64211 Always have a fully chargedThe Mask Interface ResMed AirFit N30 Nasal Mask with No Headgear is the original replacement for your mask. The product is designed to be replaced on a regular basis to provide the best performance of your mask. Cushions available in 3 different sizes: Small, Medium, and Large . This cushion is only compatible with the ResMed AirFit N30 Nasal Mask. Returns on warranty issues only.