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Refuge Chamber for Tunneling Refuge Chambers

Refuge Chamber for Tunneling

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Refuge Chamber for Tunneling

As with any underground environment, personnel require a place they can go to during an emergency scenario where respiratory or physical protection is provided e.g. in the event of a release of toxic gas/smoke, the exit route(s) is blocked.

Tunneling, as an underground environment, certainly meets this criteria and the Dräger solutions include both portable Refuge Chambers and those which are fitted ‘on-board’ Tunnel Boring Machines [TBM’s].

In either example, the Dräger Refuge Chambers are equipped with breathing gas systems to protect people against smoke or gas until rescue teams can advance to bring them out safely. The construction of the Refuge Chamber is also adapted to provide physical protection. 
By way of serving this market Dräger has the opportunity to utilize the Dräger-Simsa Refuge Chamber portfolio with a standard range to choose from.

Refuge chamber

When escaping from a hazardous area, a person may tire and require and area to rest and recuperate to continue the escape. A refuge chamber that is activated via an alarm schedule during an emergency, can serve as an intermediate station for escapees for up to eight hours. In addition to communication facilities the affected individuals – if the chamber is suitably configured – also have access to protective equipment to allow them to continue.

Air regeneration equipment

  • CO2 absorber
  • Oxygen supply
  • air conditioning

Chamber equipment

  • Seating
  • Lighting/emergency lighting
  • Power supply (external/independent)
  • Gas detector
  • Chemical toilet
  • Air curtain
  • Emergency provisions: drinking water, blankets, food, first aid equipment

Configuration features

  • Variable room dimensions
  • Systems for blocking smoke when entering the chamber
  • Filter station for the on-site air supply
  • Self-sufficient air supply via storage cylinders
  • Regeneration thru CO2 absorption and O2 metering
  • air conditioning

Positive pressure and air supply equipment

  • External supply of breathable air
  • Breathing air tank
  • Positive pressure valves
  • Gas-tight door

Rescue chamber

If the escape route during an emergency is too long or even cut off, a rescue chamber provides protection for the affected individuals until external rescue workers reach them. This can be up to 48 hours. The available air will be regenerated.


Dräger Engineered Refuge Solutions Product Information, en
Dräger Engineered Refuge Solutions Product Information, en


Safety and Rescue in mining and tunnel construction
Safety and Rescue in mining and tunnel construction

Even today, mining and tunnel construction are still filled with dangers for those working underground. Complying with legal guidelines, regulations and standards alone is no guarantee of safety. Risks can only be detected early on, systematically reduced and eliminated if the building contractor operates an allencompassing system of risk management.


Get in touch with Dräger

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Draeger Safety Canada Ltd.

​2425​ ​Skymark​ ​Ave,​ ​Unit​ ​1
Mississauga,​ ​ON​ ​L4W​ ​4Y6

+1 877-372-4371