Vent-Axia 409802 Svara 100mm Lo-Carbon Fan. 8 Vent-Axia Has Been The Leading Manufacturer For 75 Years, When It Comes To Ventilation. With This Experience Behind Them, It's No Surprise That They Are Innovators As Well, Continuously Producing New Lines With Energy Saving, Lo-Carbon Products. With A Vast Range Spanning Cool Air To Electric Heating, And Every In Between, You Know Vent-Axia Is A Name You Can Trust With Your Ventilation Needs. The Vent-Axia 409802 Svara Is A 100mm Axial Fan. This Fan Marks The Next Generation Of Unitary Fans. There Is A Bluetooth-Enabled App, Which Gives The Installer The Choice Of Continuous Or Intermittent Ventilation, Whether You Want To Use The Humidistat And Whether Or Not The Overrun Timer Is Required. Consumers Also Benefit From An App, So They Can Control Their Indoor Air Quality. The Svara Is Aesthetically Pleasing And Energy Efficient, With A Power Consumption Of Only 4W. It Has A Light Sensor That Triggers The Fan Whenever Someone Is In The Room. Dimensions: 177X81mm (Diameter X Depth) Cut-Out: 99mm