![Taiwan, Province of China[a]](https://files.upgates.com/graphics/countries/tw.svg "Taiwan, Province of China[a]"){kind=small}
The newest members of the Mountain High family of products are the MH ALPS FaceMask and the MH ALPS-M (for microphone) FaceMask. The ALPS-M is outfitted with an electronic "Clear-Speak" ambient noise-canceling microphone that enables pilots to fly with safety and comfort with clear, crisp voice communication and is compatible with most aircraft systems. The mask is easy to put on and exceptionally comfortable as it does not require a polyvinyl bag. The ALPS or the ALPS-M FaceMask can be used with any of the MH oxygen systems.
| Bridge of nose to the bottom of your chin distance | Size |
| 4.25 " | Small |
| 4.75 " | Medium |
| 5.12 " | Large |
