The Envirovent EVL-H-R Positive Input Ventilation System (PIV) gently ventilates the home from a central position on a landing from within your loft. It is a sophisticated whole home ventilation and condensation control unit which transforms a stagnant and stale atmosphere into a fresh, healthy and condensation-free environment.
By drawing in fresh, filtered and clean air from outside, PIV units dilute, displaces and replaces moisture-laden air to control humidity levels so that condensation, mould and other indoor contaminants are significantly reduced.