I assume stage fog and haze that are produced by dedicated machines are not against the pyro rules? Here's the situation: We want to use haze in one of our one act plays, it's 15-20 minutes long (not sure yet lol). It's not a big enough production to warrent the expense and complications of getting a real haze machine. So afaik there are two alternatives: -Use our existing fog machine (it's one of those stupid consumer party foggers) to somehow create haze.... we are mainly looking to have one main beam of light visible, so fogging the entire stage up is not necessary I suppose, but it would be nice. A rep from a company near where I live called airmagic fx suggested using a fan and short bursts from our fog machine to create a haze substitute. I think the fog will rise quickly and be too distracting, and dissipate to fast, nevermind that that fog machine hisses VERY audibly each time it gives off a burst. (You can hear the damn thing very well from the booth). -Use "Diffusion", which is apparently haze in an aerosol can. It is claimed to be basically the same thing as haze machine haze, safe, same effect, etc. My question would be does anyone have experiance with this stuff? IE-Does it work, and will it fill a stage that is slightly larger than most school stages, or at least part of it? There are two dealers that I know of in my area that carry it. One sells them for $28 CAD ($23 USD) per can and has them in stock, one sells them for $10.30 CAD ($8.48 USD). The problem is, the cheaper place has none in stock, and will order only if I place a large enough order (ie-a case). I am not willing to commit to a purchase of an entire case without first testing it. So, I will probably by a can from the expensive place and try it out, and order it from the cheap place if I like it. But, I won't bother if anyone here can tell me if it doesn't work Thanks!