The Vent-Axia PIV- Lo-Carbon Pozidry Pro With Heater – 476311 is a Positive Input Ventilation System (PIV) for properties with a loft. It is easy to install and the unit has been designed to be as discreet as possible when installed and is the perfect solution for general refurbishment. Anti-Vibration joist mounting legs as standard Fully adjustable between 11l/s – 60l/s Smart Sense TM technology offers simple control and data logging Uses latest Lo-Carbon motor technology for low running costs Ultra-low sound level Complete with new and improved ceiling diffuser, flexible duct and G4 filters with F7 upgrade option (PM2.5 Filtration) Standard 5 year warranty Up to 5 year maintenance free filter IPX2 rated BBA Approved Tried and tested Smart Sense™ technology makes installation fast. Ready to install out of the box, with an easy carry handle to lift it though the loft hatch. A hanging kit and adjustable legs and feet are included for full installation options.