Envirovent SIL100 Silent-100 Axial Silent Extractor Fan Axial 100 mm / 4 Inch Timer Model (White)

Nice quiet fan I am pleased with it's performance. At first I couldn't get it to switch on having checked it was wired up correctly but thanks to another reviewer on here the solution is to create a bridge between the Live and Switched Live terminals. Excellent Fan easy fit replacement great value by a good brand.

Happy days I've found this extractor fan when was looking to replace an old one in the bathroom, that was as "effective" new - same as dead. After testing one - got myself a second one. Good stuff: 1. It is easy to install, no rocket science, most people will be able to fit it with a bit of attention. Obviously I won't recommend self-install if you are not much into safety (cutting electricity safely and not working with live wires (!) or just don't feel comfortable to do so. 2. It's quiet indeed. No, don't expect it to be completely silent as it's simply impossible for something that has meaningful extraction power, which I bet we all need from an extraction fan :). But it is not loud! I am a light sleeper and can definitely fall asleep with it working right against the wall. 3. Effective and extracts decent amount of moisture! I definitely felt a big difference here in comparison with the old one. Now, I'm not taking a shower anymore in a cloud of fog and my fire alarm in landing does not go off once I open the door after showering (because of excess moisture rushing to it). Considering it also consumes just 8 watts - yes please. That's another reason why I've got two of them. TO NOTE: - Beware of air depletion (make-up air)! If something is extracting air - there has to be a replacement of air coming from somewhere. So if you have everything tightly closed, doors, windows, etc. - eventually you get reduced extraction flow and correspondingly efficiency. So if possible, consider not closing the door fully, or leaving the window slightly open. This by the way applies to any extractors and is just a showcase that this one actually has decent (96 cubic meter/hour (!) extraction power not just on paper! - If it exits in your loft or attic - make sure it goes through a pipe straight outside, through the roof or whatever setup you have. Don't leave it just like that, trust me, if it sucks air from your bathroom - it will fill effectively with moisture any room to which it connects :) you won't want clear bathroom but an attic full of mould. Beside all above, it looks good, feels sturdy for what it is and despite maybe not being the cheapest - provides great value for your money. Recommended it to my friends and can responsibly recommend it to you. Hope it helps. Stay well & Cheers!

I have an ensuite bathroom with no window. Which is therefore prone to condensation and of course smells tend to linger....! The extractor in situ wasn't really pulling its weight, so I spent some time researching the options. This one appeared to offer a good balance between performance and cost, and to be fair it does. It's definitely shifting more air and moisture - I can feel a stronger flow at the duct exit point outside, and the walls and mirror both clear more quickly than in the past. And I'm pretty sure that smells are shifting more quickly too. I think it's a good buy, but it's no quieter than the old one. To be fair it's not at all noisy - but it's not silent. It was also very simple to fit, removal and replacement took about 15 minutes. I definitely recommend it.

Very straightforward to install. Extremely impressed by the fans quietness and most of all, its ability to remove steam quickly from the bathroom. Excellent product that I would recommend.

Not silent but a lot quieter than my previous fan. Easy to fit but the potentiometer for adjusting run on time is fiddly and very sensitive, and the included plastic screwdriver for it is a bit flimsy. Seems to have a bit more oomph than my previous fan but if you really need a lot more flow you might be better upgrading to 125mm or 150mm fan.

The fan is not silent in operation but has a quiet low air rushing sound. No vibrations that can be heard outside the room when the door is closed. The back draught flap is just a thin plastic film that you might be tempted to throw out as packaging if you did not know. It seems to be effective as I can feel no back draughts in the light wind conditions in recent days. Also you do not hear any clacking as you would from a mechanical back draught protector opening and closing in gusty conditions. I ordered the version with just the adjustable over run timer. (So had live and switched live available at the point of installation.) I turned the adjustment trim pot up full then backed off a quarter turn. This gives me 18 minutes of over run after it is switched off. This works well for the shower room and all steam is cleared. Installation was easy to complete.

Quiet and neat - installed easily to replace a previous model SIL 100T that had lasted 14 years! Don't forget to order a 350mm cable tie to attach to the outlet vent duct (if present)!

I purchased this to substitute an old Airflow 15. My main considerations were backdraught shutters, noise level, and extraction rate, as we have a large bathroom. 1. The description states that it has a Back Draft Shutter. I attach the photo of it. This is a plastic film circle that you may think is part of the packaging and throw away. I did not expect this to be called a “shutter”, especially after having an iCon where the plastic shutters open and close properly. There are also gaps between this circle and the plastic edges of the fan, so I am not sure why cold air would not pass through when the fan is not running. Another point is that dust always gets in, and if it sits on the film, after a year it may not lift as it should, because it needs to be very light to move when the fan is on. 2. iCon 15 states 28.8 dB and Environvent SIL100T states 26 dB noise level. SIL100T was much quieter, almost no sound at all. 3. iCon 15 states 19 l/s extraction rate and Environvent SIL100T states 26 l/s. Several people tried to see any difference, including using tissues and smoke. There was no identifiable difference at all, even though going from 19 l/s to 26 l/s should increase extraction by 36 per cent. I also added the photo of the timer. I found the timer very confusing for regulating the time as the starting point and the increase/decrease step is not clear