Bathroom fan 50-80-100 CFM DC Energy-Saving Motor,Very Quiet Ventilation and Exhaust Fan, Ceiling or Wall Mounted Fan, CFM Adjustable,White

I am utterly blown away by the Tech Drive Super-Quiet fan! The name doesn't lie – I honestly can't believe how incredibly quiet it is while operating. It's almost silent, a complete game-changer compared to the roaring jet engine my old fan sounded like.But the real magic? The POWER! My daughter is notorious for taking epic, hour-long showers that usually leave our bathroom looking like a tropical rainforest, dripping with condensation and thick with steam. Yesterday, after one of her marathon sessions, I walked into the bathroom fully expecting the usual sauna conditions.I was met with... NOTHING. Not a single ounce of steam lingered in the air. The mirrors were crystal clear. The walls were completely dry. It was as if she hadn't even showered! This fan is an absolute beast at extracting moisture and air.If you're looking for a bathroom fan that is both unbelievably quiet and incredibly powerful, look no further. The Tech Drive Super-Quiet is a true marvel. It has completely solved our humidity issues and does so without making a peep. I am beyond impressed and wholeheartedly recommend this fan to anyone who wants a truly effective and silent ventilation solution.

I tested the 90cfm fan, it is very well constructed. I was so intrigued by the quality, the heavy protective boxing. I was actually proud that I bought this and will certainly monitor this seller and more products from this bath fan manufacturer. Very well done! the fan is almost silent.

I brought this a year ago. Quiet and work great

Summary: The fan is quiet, and does a decent job of moving air, but it is not strong enough to move air through a long exhaust duct.I bought this fan to help draw heat from a small closet that contains computer and A/V equipment. The closet is inside the house, but has no HVAC duct other ventilation, so the equipment tends to keep it very warm. The fan is rated at 70cfm and my closet is barely 50 cubic feet, so I figured this would do a decent job. I paired it with a thermostat in hopes of keeping the closet temp no higher than 78F.Installation was simple with attic access from above to screw the housing to a joist. The housing does have keyhole style screw slots for mounting to the joist, so it is theoretically possible to install this without access from above. Even so, it would be very difficult to do it that way, and it would likely leave the fan loose against the joist where it could rattle and vibrate. If you cannot install this fan from above, you might want to choose a different one made for “old work” mounting.I attached about 15 feet of flexible ducting to the exhaust port of the fan to route the hot air to a soffit vent. After installing everything, I set my thermostat at 78 and waited for the closet to cool down. After an hour, it had not dropped at all. I used a small sliver of paper to see if the fan was drawing air, and it was not. I checked the end of my duct and air was barely moving out of it, but when I detached the duct from the fan’s exhaust, it was blowing very well. I decided that the fan was too weak to push that amount of air through the length of duct. Since this is not in a humid bathroom, I just removed the duct and let the fan vent directly into the attic. It then quickly cooled the closet.With the closet door closed, and everything else in the house quiet, I can just barely hear the fan running. I’d say it’s about as loud as a typical computer fan. It is nowhere near as loud as the contractor-grade ventilation fans in the bathrooms. So far, it is doing its job, and I am happy with the purchase. If you do need to duct the output of this fan, you may want a model with a stronger motor.

very quiet. very easy install.

You can barely hear this fan running. It is great, highly recommend it!!

The hard part is retro-fit when you don't have access to unscrew the old housing from the joint. This one happens to the exact size (7-1/2 by 7-1/4) of the old builder fan, the the height is a bit bigger. So I try to fit this into the old housing. What you need is to take down the support parts connecting the fan (in black) from the new housing, find a way to attach them to the old housing (see picture), then attach the fan to the support parts. Due to one side the housing was for ground wire attachment, not smooth, I was only able to use 2 out of 3 supports. But it seems good enough with the tight fit and friction. But if you are not handy, it will take quite some time to do it.This one is 2 Sone, 70 CFM, much improvement over the builder 4 Sone/50 CFM fan. Also easy to replace if needed because it is screwed in.