Black light posters

[D_Dewanc Spermatocide]

I've had this metallica black light poster for a few years and naturally its picked up some dust and cobwebs and what not. Does anybody know a proper way to clean these without losing the picture? Thanks in advance.

 

[pym]

Lightly brush it off with a soft bristle paint brush.

 

[HellsKitchenmanNYC]

Try a Swiffer too.