The Gas Mask fetish is one of the more interesting fetishes out there, part punishment play or breath play, or used in horror movies to make people tons more scared. Some of the vintage Soviet gas masks make for awesome horror movies like the Reeker, a really grade B horror movie. Depending on your take, the isolation of facial features makes the gas mask an essential part of horror and in some cases BDSM. As far as fetishes go, it is something that reaches all the way though BDSM, to Horror, and in some cases even into the Steampunk communities.
It is also good for helping your model remain anonymous depending on what they do for their day job. The Gas Mask is an element of design that can be interpreted through at least three community lenses that I know of, and there are probably more. If you have a gas mask it is always a good idea to wipe it out with soap and water at the end of the shoot so that it remains clean. If you want to keep it shiny use silicon oil rather than a petroleum product as petroleum will eat through the rubber. They can be pretty expensive depending on what kind of mask you purchase. The cheaper ones are the more common, like the Israeli and Russian common masks. Some of the hardest to find are those like the ShMS Gas mask that has an other worldly alien and quite scary look and feel to it. If you want to do fetish work with a gas mask go with the regular ones you can find in most army navy stores. But if you want something really special like the ShMS Gas mask your best bet is Ebay, and around 100.00 dollars when they are available. If you are short on funds, or just want to try it out, you can generally find gas masks at the army navy surplus store for 20 to 30 dollars.
Below is one of the regular gas mask girl galleries that I have online. Standard setting of the white background, standard studio lighting, I used CL lighting rather than flash because I really wanted to control the reflections in the eye windows of the gas mask. Usually the flash will flare off the plastic eye covers and I wanted to get what I was seeing. The camera was set for 100 ISO at 1/125th. The floor is painted black but I wanted to use the highlights off the floor as well in composing the image. Overall it was a fun shoot and follow back on the gallery link to check out the other stuff.