ANSNF 2 Pack Oxygen Mask for Face Adult with 6.6′ Tube & Adjustable Elastic Strap – Size L – NO Cup

No Cup: Come with 2 masks and 2 tubing.This oxygen mask is only connected to a portable oxygen concentrator or tank.
Easy to Use: Assembly can be completed in 10 seconds.
High Quality: Made of high quality material, these accessory is latex-free, no smell, lightweight to maximize comfort.
Reusable: These accessories are reusable and easy to clean. Please clean them after each use to extend the lifetime.
No Worry: Please feel free to contact us if there is any problem with our products.