Best place to buy a good gas mask please

[Nylon macs]

Wheres the best place to buy a new gas mask uk if possible please. Any recommendations would be helpful.
And a nice one for some breathplay.
My wife fancies one aswell as myself.
Many thanks in advance

Hi ,we've bought masks from an army surplus store, which was a genuine ex military one and also from ebay which I think is specifically produced for fetish as the rubber is a little thinner and shiny.

Mmm sounds like the sort we are interested in buying. Cant wait to try one ..always fantasizing about having one put on my face for some breathplay looks really good.
Thank you pvcjayne.