Fan

EcoVent® Fan, Single Pack, 70/90 CFM, 0.7/1.5 sone, ENERGY STAR®-qualified, 2x6 construction, production builders/ manufactured housing

WhisperGreen®Select Dual Speed Fan/Architectural Grille, high speed 50/80/110 CFM, low speed 30-100 CFM for continuous operation, <0.3/<0.3/<0.3 sone, ENERGY STAR® Most Efficient-qualified, 2x8 construction