Our gliders are in the living room which is right next to the kitchen. We live in an apartment with an open kitchen. I cook with a cast iron skillet or teflon coated pots. I was told by the breeder not to have them in the bonding pouch cooking with teflon coated cookware, but if they are in their cage it's okay.
As for being bad for us, it isn't really. The amount of time that my food spends in a skillet is not enough to cause a problem. It would be different if I cooked things at extremely high heat for extended periods of time, but I don't. It's only at extremely high heat that it begins to be a problem.
So I don't worry about it for the gliders. Besides, they can't go in our room, so this is really the only option.