Since I have started spraying about two years ago I have always used Organic Vapor cartridges. This is what the vendors have always recommended to me. I have never been satisfied with them. The do not filter out enough and no matter if it is a brand new cartridge I can still smell and feel the effects of the pre cat and post cat lacquers and conversion varnishes.
I decided a short while back that I wanted to get a more comfortable respirator half mask. I found a 3M 7500 series mask and it had a list of cartridges that would fit it. Well, I saw a cartridge I hadn't seen before. It was an Organic Vapor/Acid Gas cartridge. Well, I have got to tell you. If you aren't using one of these you should be. What an amazing difference. I smell nothing, I don't feel any effects of spraying these lacquers. I figure that there must be a few guys out there with this problem and would like to offer my solution.
From contributor J:
You shouldn't have been able to smell anything with the other ones. It sounds more like a mask fitting problem to me.
Basically what the mask is, is an air pump you place outside your booth in a clean fresh atmosphere, and it just pumps the air from the box outside your booth through a tube leading to a mask you wear. This is better, as you can spray and breathe fresh and clean air, even in a booth with no ventilation. The only downside is that now you have another hose to get in the way, and have to hold, but I think it is well worth it, as my health and life are more important to me than saving a few bucks. (Although I donít recommend spraying with no ventilation).
Does anyone have any inside knowledge about this? I've always heard that Organic Vapors cartridges were all you needed for Magnamax and Krystal. I've never had a problem with them.
On the other hand, while looking at the Acid Gases cartridges I noticed they have an Organic Vapors/Formaldehyde cartridge. I do know that both Magnamax and Krystal contain formaldehyde, but is it a case where itís such a small amount that this cartridge isn't necessary?