Philips Respironics Pico Nasal Mask Headgear ST this portable nebulizer operates with

this portable nebulizer operates with tap or distilled water for easy filling no matter where you find yourself when you need assistance breathing

you still have the option of removing the humidifier from the device entirely

Dual-wall nasal pillows for stability and seal

About the Zen-O Portable Oxygen Concentrator

Philips Respironics Pico Nasal Mask Headgear ST this portable nebulizer operates withReplacement Headgear for the Pico Traditional Nasal Mask Features: Soft and slim for easy travel and transport Quick release clips, allowing both easy application and removal Circular crown strap helps to stabilize mask* Headgear only!