ebay or amazon, you could find one of the smaller ones for under 50 shipped.. But dont buy a used one or from someone thats not an actual store. Not a carbon filter anyway..
this is your cheapest way... but you must be handy http://forum.grasscity.com/do-yourself/699503-diy-pro-grade-400cfm-air-filter.html Can Filter 33 [358621] - $99.96 : The Hydro Source - Hydroponics Experts, Leaders in Environmentally Friendly Hydroponics 100 bucks... and it can handle 400CFM....
i dont have a problem paying for one at all, 100 bucks to buy one is cheaper then bail if the smell gets out ya know.. was just curious as to if any were better than the next.
Yes, one is better than the next... A lot of the FleaBay filters are home built and sold as "manufactured" but they do not work as well as the real manufactured filters.... The company I have always dealt with is The Hydro Source.. Great prices, great customer service, and they ship in Discreet Packaging... They have a couple combo (blower and filter)... 6" Inline Fan & Carbon Filter Combo = $155 w/free shipping 4" Inline Fan & Carbon Filter Combo = $113 w/free shipping They also have a HUGE line of Air Carbon Filters Also if you have a big smell issue, I have seen people take a 5gal bucket with lid, punch a bunch of large holes around the top of the bucket, and then run their exhaust into the lid of the bucket... They then put about a gallon of water in the bucket and a teaspoon of linseed or lemon seed oil in the water.. So when the blower blows into the bucket, all you smell is the oils... You can use any Essential Oil you wish, I usually just go to my local New Wave store and they usually have a pretty good selection of oils... But kills the smell and makes your house smell good at the same time..