Passyfier® 230 - Sleeved Dehumidifier Vent - Rustic/Condensation Control

Product Information

The diffusion process is slow compared with mechanical ventilation and would not cope with the copious amount of water vapour produced in a short time scale without the combined use of mechanical ventilation in kitchens and bathrooms. Integrated Fly Screen: Passyfier vents come equipped with an internal white plastic grille with an integrated fly screen to keep insects at bay. Installing Passyfier vents is relatively simple and can be done by most DIY enthusiasts without any professional assistance. The manufacturer provides detailed instructions with each vent, but here's a basic installation guide to help you get started.

Passyfier vents have no moving parts, making them incredibly silent and energy-efficient. Unlike electric or desiccant dehumidifiers, they don't require any electricity to function, relying instead on natural pressure differences. Insert the Passyfier Vent tube into the prepared opening, connect the internal plastic grille and the external cowl to the Passyfier vent tube, and fix to the wall surface following the manufacturer's instructions. Ensure that the vent is level and held firm in the opening.The moisture vapour pressure within a dwelling is always higher than the outside pressure therefore there will always be an escape of moisture vapour by the diffusion process through the Passyfier Vent.

Builders often reccomend passyfier vents, these work on the principle of air movement and pressure changes - eg when you open and close a door, but as you do not open and close doors all night when condensation is at it's worst (not if you want some sleep that is) their efficiency is limited. They will help to reduce but seldom cure condensation problems. Builders tend to reccommend them as they are easy to fit and you do not have to carry out any complex calculations for them.The Perma-vent passive air vent is environmentally friendly and requires no power, saving you money on your energy bills. It also has no moving parts and doesn’t require any maintenance. Passive Ventilation Products from Permagard Until recently very little research had been done to prove the effectiveness of PIV and yet it widely specified. The BRE recently set up a parallel study to investigate the performance of PIV systems and carried out trials in their Watford test house and field studies in 16 Welsh properties. The study concluded with the following key findings: Kill any mould that exists on the floor, wall and ceiling surfaces with a good quality fungicidal wash before redecorating. Energy-Efficient: Passyfier vents are incredibly energy-efficient, requiring no electricity to function. They rely on natural pressure differences instead, making them cost-effective and environmentally friendly.