In July (2020), I had the Fisher Brothers install an inline attic fan and two intake vents in the ceiling above the shower stall (2nd-floor bathroom). I also inquire about how we can get the most effective ventilation when operating our new bathroom exhaust fan (fans) when running the shower. The brothers noted that we might still need to crack the bathroom window when using the shower if there is not enough air intake coming from the bathroom door. Part of the install, the brothers planned to disconnect the old ceiling fan motor and using just the light in the housing. I asked if it's possible to keep the existing ventilation connection that already leads to a current soffit opening on the exterior of the house and use the existing ductwork passage of airflow to enter the bathroom when operating the new exhaust fan. The brothers made this happened in addition to installing a new fan, new ductwork, and a new exterior vent door to the side of the house. The Fisher Brothers also installed a 4-inch motorized damper between to the existing ductwork [outside soffit to the current ceiling fan opening] and wired w/ all the necessary electrical components, transformer, relay, etc. When I turn on the wall switch, the damper opens, allowing the outside air (from the existing soffit) to enter the bathroom vent into the bathroom. In return, a jet stream is created while the new fan is running/ceiling in-take and vents the moist air outside to a newly installed vent. Our bathroom no longer steams/condensates the walls and mirror, and we do not need to crack the bathroom window. The Fisher Brothers innovation (utilize exiting ventilation, etc.), quality of work, and neatness work, as always, is phenomenal! -PMR (Forestdale, MA) read more