Panasonic WhisperCeiling Bathroom Exhaust Fan, 50-80-110 CFM, FV-0511VQ1

Works well and very quiet, but: 1) the exhaust port is only 4", but the cowling is compatible with 6" duct work. So even if you use 6" ducts, there's still a 4" constriction in the airflow. 2) the motor is in a box that connects to a frame. Only the box can be inserted from below. The frame must still be installed from the attic. That's where the power and ducts are connected. So you'll still need to crawl around up there to install this. But, I still gave this fan 5 stars. I'm quite happy with it.

This thing is relatively expensive for an exhaust fan so you're probably checking reviews to see if it's worth it. From my perspective it definitely is if you want a fan that does a great job drawing out shower moisture and toilet fumes and does so quietly; so quietly that sometimes it's difficult to know when it's running. I bought this model because my cheap-o builder spared all expense and put in a 3" duct. That duct limits the airflow so that the even cheaper fan that they put in could not keep up with the steam from my wife's hot showers so the mirrors fogged up all the time. I was concerned that even with a better fan the 3" duct would still keep the air flow down and it might even make a quiet fan noisy due to the restriction, but my concerns were alleviated with this new fan. I set it on the lowest of the two speeds and it works great in our 8'x9' bathroom! The speed switch is readily accessible if I want to test the higher speed later, but so far I have no need to do so. Installation was not simple, but it was not difficult either. I'm just a homeowner who does most of the repairs and updates to the house, but I'm no professional, yet I was able to get this installed and working within a couple of hours. Bottom line, if you have the coin to spare, you'll be happy with this fan.

Update: I bought a second one. It turns on and off repeatedly. I read on someone else's review that this will happen if your timer switch doesn't have the right specs, and they named mine specifically. I'm going to remove it and put in a regular switch to test it out. I installed this in my bathroom because the bathroom fan that came with the house was the cheap builder's-grade fan. It was loud and didn't move much air. After each shower, the mirror was dripping wet and the bathroom was full of steam. After installing this, the bathroom air is clear of steam after a shower. The mirror fogs up, but not nearly as bad as before and it clears really quickly after I get out of the shower. Good choice! Installation wasn't fun because I got up in the attic with all of the blown in insulation so I could install a larger diameter exhaust st run and the fan was difficult to get to in my case. Not the fan's fault. I could have installed it completely from below if I had bigger exhaust piping already hooked up.

It's a bit slow to get going, but is very quiet and moves air well enough for a medium size bathroom. Installation was very easy, partially due to having attic access from above. Still the mounting hardware was a huge step up from the old fan this was replacing.

Nice vent fan, with good fit and finish, but worst instructions ever - YouTube has installation videos that will walk you through the process. The flex bracket makes install from inside the room a bit easier and is sturdy, unlike cheaper options. Packaging is well thought out - you even get a cardboard ceiling cutout template out of the box that perfectly matches the fan housing size. The supplied screws are the worst/cheapest quality metal I have encountered in years. Pitch them and use your own or be very careful to not strip out the heads. The 8 second delay when turning it on made me re-wire twice thinking something was wrong before consulting Google. Other than that it works fine for our 80 sq ft 2nd BR. I know that sounds like a lot of complaints, but the rest is all good. Much quieter than the builder-grade fan we had and yet moves much more air. Completely inoffensive appearance. It does what it’s supposed to do. I’ll be buying a second one for our master BR next week.

It is truly whisper quite! However, the air movement is well beyond the fan it replaced. It takes a few seconds to reach operating speed, you will think it's not on, but when it reaches operating speed, it works great!

Super quiet. Has a slow start. I can feel it pulling air through the closed bathroom door. Installed a few of these for friends and family.

Nice and quite replacement for the builder grade noise maker. Using the 4" pipe you can hardly tell it is running

Excellent bathroom fan. Very quiet while still moving plenty of air. The build quality feels solid, and the SmartFlow technology keeps airflow consistent. The speed selector is a nice feature and makes installation more flexible. Easy to install and a noticeable upgrade from standard noisy fans. Definitely worth the price for the performance and reliability.

Great ceiling fan was easy enough to install and works great Fan is quiet be aware it has a delayed start for a few seconds so its not drawing a Lot of power on start up would highly recommend this fan worth the money

It's easy to install with the Flex-Z Fast bracket. I could do it without access from attic. The noise level at 110 rpm is just normal compared with my old fan. I would not say it's quiet. There's also a delay in starting. It struggles to start at the beginning. I thought there's something wrong with it. But many people said it's normal for this fan. It's effective to draw humid air from the shower.

This Panasonic exhaust fan continues the brand’s well-known quiet performance — it runs smoothly with very low noise, which is exactly what I was looking for. The three adjustable airflow settings are a great feature and make it easy to choose the right ventilation level for different situations. For installation, I went up into the attic to get everything properly set up, and the result was excellent. The fan works efficiently, feels solidly built, and delivers consistent airflow. Overall, a reliable and high-quality exhaust fan that I’m very satisfied with. Highly recommended!

Great fan. Easy to install. Quiet I do bathroom remodeling and always use Panasonic fans.