I think you are describing a tiny room with nothing but a toilet that opens off of the rest of the bathroom. I have a tiny powder room, and the fan definitely works for odors in there. If you only put a fan in the main room, you'll just suck the odors into there. When we do our master with that sort of set-up, I plan to put in two fans. I also recommend putting both fans on a timer.

Jani18, the Fantech ones I bought (one installed in our guest bath, one in the box awaiting installation in our master bath in about two weeks) are the ones with the halogen light. Fantech makes one with a compact fluorescent light which isn't big like the Panasonic, but I actually prefer the warmer (yellower) color of a regular light to the cooler (bluer) color of a fluorescent for the shower. And I like being able to dim the halogen light, which you can't do with the fluorescent, even though most times we'll probably just leave in on high. (I have rope light above and below our vanity and cabinets to use as a "night light", but if you don't otherwise have a built-in nightlight, then turning on the Fantech halogen light at a low setting on a dimmer would work well.) I'm quite happy with the model with the halogen light. Which model of Fantech fan? That depends on how large your bathroom is. Their smallest fan, the one I have, moves 110 cubic feet or air per minute (CFM) and is good for bathrooms up to roughly 100 square feet. Our guest bath is 7'x7', so the small fan is sufficient. The master bath we're redoing now is larger, but it's divided into two separate rooms for the shower & toilet and the sink & dressing table; we decided we only needed ventilation for the shower/toilet room, so the small fan is again the proper size for us. I therefore got the Fantech PB110H, which includes the fan, grille housing, and grille with halogen light. If your bathroom is bigger, Fantch offers a larger 190 CFM model, and 270 CFM model with two grilles, and even a 370 CFM model. The Fantech web page shows the options and model numbers, and explains how to calculate how big a fan you need. Fantech sells a timer switch, but I couldn't find out much information about it; it may be custom made for them. I decided to use Lutron, because it did exactly what I wanted and I could match it to the other light switches in the rooms. I'm using the one mentioned higher up in this thread, the Lutron MA-L3T251, which contains a light dimmer in the top half and a fan timer in the bottom half of a single size switch. I'm a big fan of Lutron's Maestro dimmers, which we have in a bunch of places in our house. They turn lights on and off with a gentle fade on and fade off over about a second, and once you set the lighting level you prefer, the light comes on to that level whenever you tap it. For the fan, you can preset it for just on/off, or 60, 45, 30 or 15 minute countdown. We have it on 60 minutes. Enter the bathroom, tap the button, take your shower and do your bathroom business, and it shuts off the fan an hour after you started. The fan is so quiet that unless you listen closely for it, you don't know its on; without a timer, I'm sure we'd be accidentally leaving it on all day with some regularity! The Lutron switch comes in a bunch of colors, with matching Claro wallplates; you won't find most of the colors in a box store or even most lighting stores, but lighting stores or online retailers can order any of the colors Lutron offers. We went to a lighting store which had sample chips of all the Lutron colors, so we could see which looked best with our tile. Hope that helps! -- Eric

We have two Broan heat lamps with fans. Both are ~25 years old, and are still made by Broan. Take a look at Broan.com, go to heaters > bulb heaters. We have the older equivalents to the model 162 and 164. Wife really likes them. They put out a toasty shaft of heat downwards. I ordered up replacement motors and the plastic squirrel cage blowers recently. After 25 years of heavy use, I was needing to take out and oil the motors about once a year to keep them spinning fast and quiet. New motors solved that. Our wiring setup has the bulb(s) and fan on separate switches. We also have a regular light fixture that we turn on for general lighting. They have models without fan, just one or two bulbs also.

Thanks for your suggestion but I do not want a second dedicated switch for a fan. And no, I'm not making this waaaaaaaay too complicated. You guys are making this complicated by trying to get me to not use a motion activated timer. That's the non-complicated way. I don't have any special issues and my friends don't really stink. If you don't care about this stuff for YOUR bathrooms then there is no reason for you to judge ME for wanting to do it in the best way. Even if you don't think I need to do all this, I didn't come here asking if I SHOULD do it, I am asking for HOW to best accomplish my objective. The problem is that product I want doesn't seem to exist. 50 CFM with sufficient volume and a way to keep the fan running for a few minutes after the visitor departs. Motion activation seems to be the way to accomplish this. Seems like I can get fans with two of the three features in various combinations but not all three in one. I want my bathroom visitors to turn on the light and I want the fan to work automatically, not on a separate second switch. Based on my research the solution is to buy a 50 CFM fan that is sufficiently loud then take care of the fan activation with a motion sensor. Not complicated. So again... 1) Can someone give me some advice as to how many sones I should get? I'm 80% sure it should be 3 or 4, but 4 is twice as loud as 3 so some guidance on this would be helpful. This is my most pressing question right now. 2) I've identified a Broan and an Air King that meet the criteria for the fan. I'd like to know if anyone has experience with these brands and are they reliable? 3) As an alternative, I can get an 80 CFM fan that has everything in one unit but from what I've read I'm pretty sure 80 CFM is way too strong for that size powder room. Anyone think 80 CFM would be OK in a room that small? I don't think that's so complicated. There is a fourth question I'd love to know about which IS more complicated but you guys brought that into the fold. 4) Is there a way to get the fan to come on with the light switch but stay on for several minutes after the light switch is turned off? I do not want second dedicated fan switch/dial/etc. On a side note, an occupancy sensor should not be finicky here. It's a tiny room with one way in/out. I think it would be hard to put a motion sensor in this space that would fail to accurately detect an occupant. Thanks guys.