The K7088A-90 boasts an ASC (Advanced Sensor Control) system that detects steam, vapour, smoke and odours generated by the cooking process, and automatically switches itself on if necessary. For added safety, the ASC detects abnormal levels of gas, although you can still operate the hood manually if required. In a smart design, this contemporary square-edged hood possesses a powerful motor and has 3 push-button speed settings, as well as a quiet noise rating of 51dB-69dB. It also features an alarm to tell you when to clean the quick-release washable grease filter, while 2 20W halogen lamps provide optimum illumination. Should you wish to set the hood to recirculation mode, a CASS carbon filter is required (sold separately). Britannia appliances are created with care and style in mind, providing trustworthy performance and reliability. Fine aesthetics combined with rock-solid construction are the hallmarks of every Britannia appliance, so rest assured the K7088A-90 is sure to serve you well in your kitchen.