With 3 speed settings this cooker hood is incredibly easy to control giving you the utmost versatility as you can ensure that no matter what you are cooking your kitchen will be smell and steam free this russell hobbs 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