F F finnishchaga May 4, 2020 Hi I noticed you were very knowledgable on fan CFM and choosing the right fan for a filter; have a favour to ask as wanted your opinion. Can i ask you a question or 2?
Hi I noticed you were very knowledgable on fan CFM and choosing the right fan for a filter; have a favour to ask as wanted your opinion. Can i ask you a question or 2?
