It seems that a lot of artists need a portable spray booth. Those who spray or paint varnishes on their paintings usually have issues with fumes and also with wind blowing the spray around.
I would like to share my solution with you which is cost efficient and successful!
Firstly, I purchased a cheap one-man fishing tent off tradeMe (the New Zealand version of eBay). The tent is designed to provide seated shelter for a fisherman. It is pegged to the ground on four corners and folds up really small for transport or storage. There is enough depth in the tent to position my artwork well back out of any wind whilst there is enough room out the front of the tent to allow fumes to escape.
An option I may look at later is attaching a vacuum cleaner and a filter so that I can suck out the fumes that gather. This is not a priority at present and neither is it a necessity.
Secondly, I found that it was easier to spray my art carefully when I raised the tent off the ground. I do this with a couple of saw horses, a couple of boards and some bungy cords. It only takes 4-5 minutes to set up or to pack down.
Thirdly, I set my paintings up on a table easel which provides a ledge and a back-stop to hold my artwork securely. As shown in the pic, I use a couple of bottle tops just to raise my painting up from the overhang on the easel ledge.
Two last points.
Firstly, set up your portable spray booth outside or in a well ventilated area as fumes will collect around your workspace.
Secondly, be sure to use a good mask to protect yourself from the fumes.
If you want to know anything further, just add a comment to this post. Alternatively, you can send me an email via my contact page and I will help where I can. Happy varnishing and go well with your painting!!