The Condensation Shop Passyfier Dehumidifier vent combines a through-the-wall, ‘warm’ telescopic sleeve with a slab of insulant inside, louvered vent internally and an external airbrick available in 5 different colours.
The insulant used within the duct is transparent to the seepage of moisture vapour whilst simultaneously preventing cold draughts. Therefore people are not tempted to block them up or cover them with a poster. The vents have a telescopic outer duct so can be adjusted to all domestic wall thicknesses. For details of our complete range refer to the enclosed catalogue.