has anybody used a dust shroom by horti-control??

Hi was wondering if anyone has tried using these?? Im looking to filter out bugs and molds. Any help would be great. This is the best price i have found so far. I'm looking to get a 6 inch

http://www.amazon.com/s/?ie=UTF8&keywords=dust+shroom&tag=mh0b-20&index=aps&hvadid=1044758558&ref=pd_sl_9gjmpcu4ts_p

yes they work great! i have one myself. it comes with extra oil to lube the filter with(yes its weird but thats how they work).
my grow room is bug and pollen free. i say get it. or you can use a HEPA filter which are great as well.