Description BMC masks are compatible with the machines and pipes from other brands. The BMC N6 nasal mask is an innovative mask that takes your and your partner’s comfort into consideration. The new circular dispersion vents with lower sound level, at a mere 20dB, also prevent your spouse from being disturbed by a stream of air escaping the mask as you are breathing out. The under-the nose cushion minimizes contact with the nose and there is no longer pressure on the bridge of your nose. Three sizes cushions – small, medium, and large – are included in the package for your convenience. The smaller size and redesigned headgear help to lower the total weight significantly to hardly feel the mask during use. Simple structure with flexible headgear makes mask fitting, assemble, disassemble and cleaning easy. Comfort – Outstanding ergonomic design better fits the nose. Three cushion sizes (S/M/L) in one package enables you to choose freely, as all fit to the same frame.