S-H Ambient air hatch mask incl. breathing valve, Std (M-L), EPDM, 5-point harness

S-H Ambient air hatch mask incl. breathing valve, Std (M-L), EPDM, 5-point harness

Item number: 31820-01

The S-H mask combines the unique ambient air hatch with comfort and reliable function.

The S-H mask is equipped with an ambient air hatch enabling the user to have the mask fully donned and still breathe ambient air to save the compressed air in the cylinder. With a very simple operation, a push on the hatch cover, the air from the cylinder is activated.
With this solution the user is always sure to have a perfect seal. The risk for improper mounting of the breathing valve while wearing the mask is eliminated when it is kept correctly connected at all times. In addition, the breathing valve is always protected and never exposed to dirt, contamination and mechanical exposure.

The breathing valve has a positive lock to the mask providing a secure connection at all times. After preparing and connecting the mask to the breathing valve there is no risk for unintentional disconnection.

The mask and breathing valve design is very compact with no protruding parts which gives unrestricted visibility and reduce the risk of snagging and mechanical damage. The silent operation of the mask gives minimal noise interference and excellent communication possibilites.

  • Secure positive lock connection of the breathing valve to the face mask
  • Demand controlled and activated from inner mask providing excellent breathing performance
  • Open ambient air hatch is indicated with a highly visible indicator arm
  • Prepared and compatible with Spirocom voice communication system, "Heads-Up Display" and spectacle kit
  • Ergonomic head harness with easily operated buckles


The standard version is made from EPDM and has a 5-point head harness. This version is available in the three different sizes Standard size (M/L), Small size (S) and X-large size (XL).
The silicone version is available in Standard size only.

There is a variant compatible with helmet adapters having a 4-point head harness and a top strap. This version is available in Standard size only. When ordering this mask version, it is delivered including head harness, buckles and neck straps. But if it is ordered together with "Pre-delivery mounting of helmet adapter" (see "Accessories" below) it is delivered without head harness, buckles and neck strap.

Approval : PPE 2016/425
Connection : M16 to breathing valve
Material : EPDM / Silicone (only M/L)
Material (2) : Visor - Polycarbonate
Standard : EN136:1998
Weight : 0,7 kg

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