An "intelligent"approach to domestic ventilation is overcoming the intrinsic failings of conventional techniques.<br> <br> Passivent, supplier of domestic and commercial ventilation, has developed an MVHR system to overcome the shortcomings of traditional MVHR<br> (mechanical ventilation with heat recovery) systems in domestic and multi-occupancy environments, up to the Code for Sustainable Homes level six.<br> <br> Passivent iMVHR combines the recognised benefits of traditional MVHR with those of demand controlled humidity sensitive ventilation, to ensure rooms are adequately ventilated but only as necessary. It provides additional benefits too, delivering greater control thereby reducing energy consumption, being quicker and easier to install and commission, and eliminating any need for occupier input.<br> <br> Passivent iMVHR centres around humidity sensitive extracts in each room coupled with the patented Passiflow self-regulating airflow system to '"intelligently" ventilate only where and when needed, without any occupier input.<br> <br>