This Russell Hobbs RHGCH702B Wide Angled Black Glass Chimney Cooker Hood gives you the option to use ventilation via extraction or recirculation. Recirculation venting draws steams and smells into a filter which neutralises the odours, before being returned to the kitchen, whereas, extraction ventilation filters air with a grease trap before releasing it through an external vent (carbon filters must be purchased separately). Having both these styles of ventilation gives you increased versatility and ensures you can alter your cooker hood to best suit you, at the easy touch of a button. Features 3 speed settings, 2 energy efficient LED light bulbs to illuminate your cooking for ease of use, 5 easy-to-use manual controls to alter ventilation rate, switch on your hood or turn on the light and an aluminium filter which efficiently removes odours for longer and can be washed. Maximum extraction rate 630m?/hour. Suitable for rooms up to 63sqm. Lighting efficiency rating: A. Grease filtration efficiency rating: C. Fluid dynamic efficiency rating: D. Energy efficiency rating: C. Low noise production: 66dB.