Air Scrubber --Closed loop

Was wondering what size air scrubber to run on a 856 cubic ft closed loop I was thinking either a 165cfm or 250cfm blower with a carbon filter on 24/7......hear people saying to put the scrubber close to the floor instead of the ceiling.....?.....any insight would be much appreciated...thx in advance..

900 square feet? wow thats big. You will need a very large filter to cover that much area. You should pick your filter based on the size of the room then pick the fan based on the cfm rating of the filter. Based on that much square footage I believe you are going to need one of those monstrously huge stand up filters, like the phresh 14" by 50" which is only rated for 3,800 cfm. Your area 900 square feet x height (7?) would be like 6,300 cubic feet. Based on that filter you will need a fan that can move a hell of a lot of air. If you are getting a filter and fan that big it doesn't matter where you put it, it will suck everything up. Usually you would put it up high to pull out the hot air, but if you are not exhausting this air it doesn't matter where the filter is.

Sorry had to edit...I meant roughly 856 cubic ft....my mistake sorry........thx.

Well in that case, you would apply the same principal. choose your filter based on the size of your room and the amount of lights you have. based on the cubic feet of your space you should probably use anywher from a 400 to a 500 cfm filter and fan combo. And again if this is a closed system where you are not eshuasting the hot air it doesn't matter where you put the unit. If you are trying to exhuast the cleaned air then you should put it at the top of your room because heat rises.

You can use this http://www.phreshfilter.com/about/size-selector.aspx

ya phresh filter says 435 cfm or something.....but I"m guessing thats for an exhausted system....I would think a closed loop wouldn't require as much.....

Consider jail time and the investment you have made. Smell can get you busted so overkill isn't a bad idea Have you looked at ozone generators?

Mr. Smithh said:

ya phresh filter says 435 cfm or something.....but I"m guessing thats for an exhausted system....I would think a closed loop wouldn't require as much.....

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It doesn't matter whether it's exhausted or not when it comes to your cfm imo. It matters how often you want an air exchange, how much you will lose to the filter, and how hard you want your fan to work.

Withing reason of course.