ANSNF 2 Pack High Flow Oxygen Mask for Adults, Non Rebreather Oxygen Mask with Reservoir Bag, Portable Oxygen Face Mask with 6.6' Tube & Adjustable Elastic Strap, Size M

["High Flow Oxygen Delivery: ANSNF non-rebreather oxygen mask equipped with a reservoir bag, delivering higher oxygen levels than standard oxygen masks for improved oxygen support.","Premium-Quality Design: Single-way valves prevent exhaled air from mixing with incoming oxygen, ensuring consistent oxygen flow and helping maintain efficient oxygen flow.","Durable & Comfortable Design: Made from soft PVC with an adjustable elastic strap for a secure, comfortable fit, suitable for home or travel use.","Universal Compatibility: Comes with a 6.6’ flexible oxygen tube compatible with most oxygen tanks and concentrators for convenient setup in any environment.","Safe & Easy to Use: Lightweight, portable, and transparent design allows easy monitoring of the user while providing reliable oxygen support."]