DIY Doctor

Main navigation

Which Passive Vent for condensation?

Postby Twister99 » Fri Jan 30, 2009 1:21 pm

Hi guys

I have a condensation problem and understand that fitting a passive humidity vent would go some way to alleviating this problem.

The difficulty is that I have been recommended three specific units at similar prices but had no idea which is the best.

They are
Passyfier vent

Fresh 99H by Passivent ... ATION.html

Aereco EHT 17 40

What is your experience with either of these and which would you recommend for moisture/humidity absorption?

Many thanks
Rank: Labourer
Progress to next rank:
Posts: 2
Joined: Fri Jan 30, 2009 1:20 pm


Simply Build It

Postby Perry525 » Mon Feb 02, 2009 8:14 pm

Passive vents are a good idea but, they don't work.

Better to solve the condensation problem.

Condensation is caused by people.

People put water vapour into the air of their homes.

They do it by breathing, sweating, washing, leaving doors open, drying things on radiators etc;
Not having extractor fans in kitchens and bathrooms or not using them or not using them long enough.

Possibly the worst thing is to turn the heating down or off at night or when going out.

Warm air holds much more water vapour the cold air, so when the temperature drops in front of the windows because you have drawn the curtains or closed the blinds, the trapped air gets cold and out comes the condensation, don't do it the window surface stays warm and no or very little condensation.
Rank: Site Agent
Progress to next rank:
Posts: 734
Joined: Fri Jul 06, 2007 7:35 pm

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!

  • Related Topics