thenorthern
Established Member
- Joined
- 27 May 2013
- Messages
- 4,118
So I was looking at fire extinguishers for a friend of mine and I noticed that there used to be a gas used until the 1990s called Halon which apparently is great at fighting fires but it removes the ozone layer so they were banned except for certain critical purposes.
Apparently the main exemption is for aircraft but also the Channel Tunnel has an exemption because of the critical nature of safety in the tunnel.
I was wondering though is the Channel Tunnel the only one with the halon ban exemption or is Halon also used to fight fires in other places such as the London Underground or other places.
Apparently the main exemption is for aircraft but also the Channel Tunnel has an exemption because of the critical nature of safety in the tunnel.
I was wondering though is the Channel Tunnel the only one with the halon ban exemption or is Halon also used to fight fires in other places such as the London Underground or other places.