I was about to suggest using that tooI use 2 sheets of kitchen-hood filter (cut to size), works great for me (diy spraybooth).
Thanks Tim.There are several companies selling spray booth filter material in rolls Andy. It seems to be a polyester material . Here it is in the rainforest…
https://www.amazon.co.uk/EsportsMJJ...spray+booth+filter+roll&qid=1645996848&sr=8-5
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