You cook in the kitchen. The bedroom upstairs smells like dinner. The living room smells like dinner. The towels in the bathroom smell like dinner. This is a containment problem, and it's different from just getting rid of cooking smells in the kitchen itself.
The kitchen fixes are covered in our main guide. This article is about stopping the smell reaching the rest of the house in the first place.
Why smells travel upstairs
Warm air rises. When you cook, the air above the hob heats up and carries oil particles and volatile compounds upward. In a house with a staircase, this warm air naturally travels up the stairwell. It's called the stack effect and it's worse in winter when the temperature difference between floors is larger.
Open-plan layouts accelerate the problem. No walls or doors between the kitchen and the hallway means nothing stops the particles travelling. In a terraced house with the staircase directly off the kitchen, you're basically venting cooking fumes straight up to the first floor.
The smell doesn't travel as a gas and then disappear. The oil particles land on surfaces upstairs — curtains, bedding, carpets — and off-gas for hours. That's why you can still smell last night's cooking in the morning.
Fix the source harder: extractor upgrades
If cooking smells are reaching other rooms regularly, your current extractor probably isn't capturing enough at source.
A recirculating hood (the type that doesn't vent outside) recycles air through a carbon filter. If the filter is spent, the hood is doing nothing for odour. Replace it. If the filter is fresh and you're still getting smells spreading, the hood might just be underpowered for your hob.
Ducted extractors (ones that vent outside through a wall or ceiling) are more effective because they physically remove the air rather than filtering and recirculating it. If you're renovating or replacing a hood, ducted is the better option for smell control.
| Product | What it does | Price |
|---|---|---|
| Universal carbon filter pads | Replace spent carbon filter in recirculating hoods | £5–8 |
| Vent-Axia Lo-Carbon Revive | Upgraded extractor fan, continuous low-speed + boost | £40–80 |
Use your doors
The cheapest and most effective containment method. Close the kitchen door while you cook. If you've got a separate kitchen, this alone can solve the problem.
People with small children or pets often leave doors open out of habit. Even closing the kitchen door for the 30 minutes while you're actually frying or grilling, then opening it again once the extractor has cleared the air, makes a noticeable difference.
Obviously this doesn't help if your kitchen is open-plan. Skip to the air purifier section below if that's your situation.
Draught excluders and door seals
Closing the door helps. Sealing the gaps around it helps more. Cooking particles are small enough to travel under and around poorly fitted doors.
A basic draught excluder strip along the bottom of the kitchen door stops the warm, particle-laden air from creeping out at floor level. You can get adhesive foam strips for the sides and top of the frame for a few quid more.
This isn't about making the kitchen airtight — you don't want that. It's about reducing the passive drift of cooking air into the hallway while the extractor deals with it.
| Product | What it does | Price |
|---|---|---|
| Door bottom draught excluder seal | Stops air movement under the door | £7–10 |
| Adhesive foam door seal strips | Reduces gaps around door frame | £5–10 |
Charcoal bags in hallways and landing areas
If smell does escape the kitchen, charcoal bags placed at the transition points — hallway, bottom of stairs, landing — can intercept some of the VOCs before they reach bedrooms.
They're passive, so they won't catch everything during a big cook. But for the slow drift of particles that happens over the evening, they help. Place one at the bottom of the stairs and one on the landing. Reactivate in sunlight monthly.
| Product | What it does | Price |
|---|---|---|
| Moso Natural charcoal bag | Passive VOC absorber — place at transition points | £10–14 |
The air purifier option
This is where the serious money is, but it's the most effective solution for open-plan homes where you can't just shut a door.
An air purifier with an activated carbon filter placed in the hallway or living room will capture cooking particles before they settle on your soft furnishings. The carbon filter handles the volatile compounds (the smell), while the HEPA filter catches the particulate matter (the fine oil droplets).
For cooking smells specifically, you want a purifier with a decent carbon filter, not just a HEPA. Some budget purifiers have tiny carbon filters that saturate in weeks. Look for one with a replaceable carbon filter of reasonable size.
The Levoit Core 300S is one of the more popular options in the UK for this. It covers rooms up to about 40m², has both HEPA and activated carbon filtration, runs quietly on low settings, and costs around £80-100. Running cost is filter replacements every 6-8 months.
| Product | What it does | Price |
|---|---|---|
| Levoit Core 300S air purifier | HEPA + carbon filter, captures cooking particles and VOCs | £80–100 |
This is a bigger purchase than a charcoal bag, but if you're in an open-plan home and cooking smells in the living room are a daily problem, it's the fix that actually works.
Open-plan homes: the honest reality
If your kitchen opens directly into the living room with no door and no wall, containing cooking smells completely is very difficult. The best you can do is reduce, not eliminate.
Combination approach:
- Powerful extractor (ducted if possible) running before, during, and 15 minutes after cooking
- Air purifier with carbon filter in the living area
- Enzymatic spray on kitchen surfaces immediately after cooking
- Charcoal bags at any transition points (hallway, near sofa)
This won't make the living room smell-free while you're frying. But it'll mean the smell clears in an hour rather than lingering until morning. For many people, that's good enough.
If the smell has already settled into upholstery, our main guide covers how to deal with that.
Prices checked April 2026. Prices may vary.
