u can attach your filter directly to your fan,the 2 things that are goint to make noise are #1 if the fan propellers # 2 the air being exhausted out the back,the longer the exhaust tube of the fan, the quiter it is, but it cuts down on efficiency.the bigger than fan the more noise its going to creat.you can counter act the noise by building a 5 sided box out of partical board and glueing foam egg crate to it then screw your box to the wall with 2 holes cut out for your ducting.
disrupt86 Reviewed by disrupt86 on . Is connecting the filter directly to the fan OK or better put some ducting inbetween? I bought RUCK RKW 150-L 700m3 fan, Rhino Pro Filter 150/600 and over 15' of acoustic ducting. My original idea was to connect the filter directly to the fan, then connect the ducting and hang its end outside. I figured this setup would be most efficient and quiet. Actually I even like/liked the concept of Foothill filters best. But now I read some places that if the fan is attached to the filter a lot of noise would escape from/through the filter and the vibration of the fan can Rating: 5