Product review (5 stars): As friend recommended to get one at lease 850CFM
As friend recommended to get one at lease 850CFM, got this one after doing some internet search. The price is good compared to other 900CFM models. The noise level is small. The duct is 8", my wall duct is 7", so has the 8 to 7 reducer. Based on the instruction, no reducer, the noise level will be better, so may change it in future. The smoke suction effect is real. Installed it for about a month, so far very satisfied with what I bought. A remote control is nice to have.
I installed it by myself with a helper. The installation instuction is too simple, but finally figured it out.