So, I have to buy a bigger carbon filter for my grow room and I'm perplexed.
Some filters are longer with a thinner layer of carbon and some are short with a denser layer of carbon, all while having the same M3h rating and the same price.
So, what do I choose? I figured a thicker layer of carbon is the most important, right?
Some filters are longer with a thinner layer of carbon and some are short with a denser layer of carbon, all while having the same M3h rating and the same price.
So, what do I choose? I figured a thicker layer of carbon is the most important, right?