Condensation Damp Control Passive Wall Intake Vent Grille Kit with Filter 100mm (4 inch) Duct for Passive Fresh Air Anti Draught

I was looking for something unobtrusive to install as I needed background ventilation to pass building regulations on a new room. This kit is of good quality and fits together pretty well. The opening mechanism on the internal vent is a little sticky on receipt but a quick spray with WD40 Silicon spray has it running very smoothly. It's easy to install and feels solid enough. The internal unit has a nice foam insert to prevent draughts and insects getting into the house. I was pleased with this kit and would buy one again. A number of the reviews have criticised the lack of instructions, but this is a very simple kit and a competent DIYer will be able to work it out easily.

We had a serious condensation problem in the bedroom (bad enough that I had to squeegee the window every morning and mop it up with a towel which was then dripping wet). It caused black mould on the ceiling and had become a real health hazard. We honestly thought, due to the cheap price, that this vent might, at best, slightly lessen the amount of water on the window. In fact, it has completely solved the problem, even after the extremely cold weather of the last few months. There is now almost no condensation on the window in the morning. Please note that we did also add extra roof insulation at the same time so I guess this might have helped too, although there is a line of thought that roof insulation actually makes condensation worse as the water can’t escape through the ceiling?? If this is the case then this cheap little vent is even more effective! Once the hole was drilled, installation was simple. We are so impressed, we have bought a second one for another room.

Only just delivered. Looks OK and reasonably straightforward, however some basic info/installation details would have been nice.

Quite effective but £55?! Really? Not good value for money at all.

My builder fitted it but I am really pleased as it does its job.

I've used passive vents before but these are by far the best quality I've used. They are well made and very easy to fit. I installed 4 in a basement office we had refurbished to help control condensation and found they work really well.

Good value for money, zero noise or wind. Fits perfectly and its settings work great

The vent is made from good quality materials and is simple to install assuming that you have a 102mm hole cutter to hand. The good thing about this vent is that the flow can be adjusted and the interior face plate is flat, not slotted, with the ventilation openings around the sides. Recommended.

Facile à installer, efficace et esthétique.

Lo hemos instalado, se puede regular la apertura y tiene un diseño bonito. Cantiene un filtro el que evita ruidos etc..

Un semplice tubo telescopico con due testate, di mediocre qualità, prezzo esagerato e nessuna istruzione per il montaggio. Sula reale utilità dovrò aspettare di vedere se ritorna la muffa al muro.

Achat de 2 kits / novembre 2018. Ce système d'aération est une bonne idée. Par contre le diaphragme est difficile à manipuler avec le bouton extérieur. L'épaisseur des tubes pour traverser la paroi est à mon avis un peu faible et le plastique utilisé de qualité très moyenne. En serrant les vis de la buse extérieure, j'ai éclaté le plastique. Heureusement, il est possible de racheter cette pièce à part. Dommage qu'on ne la trouve pas en ton "pierre" pour cette taille (100mm). A voir dans le temps, mais j'ai quand même fait 2 trous de 105mm dans ma maison ... J'espère que ce dispositif tiendra dans le temps.