It cant hurt as long as you sanitize the bag. but it isnt really going to filter much. Did you use whole leaf or pellet? I guess if it was whole leaf then it would work, but for pellet I wouldnt bother. If its too cloudy and it really bothers you pick up a 1$ packet of Super Kleer and add it to your secondary.
Brew long and Prosper... May the wort be with you... Yippeekayay master brewers... You had me at free beer.