Not sure if this questions has been asked before but I thought I would ask to get some opinions. I need to spray the house for fleas and other bugs. I plan on using the foggers that you set and then leave the house for two hours. The last time I did this I did not have my Dalite HCCV fixed screen on the wall. So my question is will the fogger damage the screen in anyway? If so, could I get away with simply draping a dropcloth over it or should I completely seal it with plastic? The original packing is in the attic and not really accessible easily. I would appreciate and feed back on this. Thanks in advanced.