I desperately need an extractor for my spray tan booth, I've been managing without, but my dining room lightshade is no longer white! it's now turning a lovely shade of tan.

Has anyone got any recommandations? I was looking at the s500 from Sienna x or something similar. I work from home and mobile so ideally I don't want anything too heavy. My present tent doesn't have the flap in the back, so if there's one I can use within the booth that would be great. I will be upgrading my tent in a couple of months, so an extractor that can be used within and/or inserted into the flap would be perfect.
Thanks Geeks,
K