There are the ones that are incorporated into the hob with the downdraft extraction which are expensive and take up draw space. There is also the extractor that pops up from worktop which vents the air away. There is also the most common vented extractor fitted on the ceiling. Anyone have any experience of the downdraft models and the other recirculated pendant type that have lights (remote controlled) where you have to change the filters. All reviews considered. Thanks.