i seen a 4" 80 cfm and a 6" 250 cfm duct fan
i was wondering could i use a dimmer switch to control the fan speed?
what would you recommend 80 cfm or 250
i want to connect the duct fan to a diy carbon scrubber
i'm looking at a rubbermaid cabinet which is h 30" w 22" D 12" wish it had more...