ProductsMaskNasal MaskBMC-N4
N4 Nasal Mask
Wear Light, Sleep Right
N4 Nasal Mask
With new era of design, highly integrated NM4 is exquisite, 
swift and smart.
Tel/ Whats App: +86 13820546616
N4 Nasal Mask
Auto Fit:
Supporting frame automatically adapts to any forehead.
All cushions share the same frame.
Pad free :
Innovatively remove the forehead pad to reduce the contact area.
Minus is a plus.
Flash your use :
Simplest structure ever. Two parts only, but that's all you need.