i bought a cheap carbon filter from ebay [£17.50 for a 100mm filter] & it works fine as i tapped my extract from my growroom into my bathroom extract & was getting smells in my bathroom but seems to be fine now, the mrs isnt moaning anymore anyway!! how long the filter will last tho is another matter thought i would try it thoGrow tent 90x90x180
What is a good but cheap kit which will keep the odour away.
If i buy a filter and fan separately does the cfm have to match?