Many people only use the kitchen extractor fan for removing smells.
- Install an externally ducted kitchen extractor fan with rigid ducting, either above the hob, or light switch operated. Hoover HGM600X (£149) has a Which! Best buy.
- Make sure that at least 30 l/s is extracted out of the external vent – use an anemometer to check.
- Check with your hands to feel for leaks such as around the hood.
While you are waiting for your new fan, ask everyone to cook with tops on pots and pans to reduce production of vapour from cooking by 80%.