The honest answer: one purifier cannot clean a whole house. Air doesn’t flow freely between closed rooms, so filtration is a per-room job. Here’s how to cover a home without overspending.
Our recommendation
CleanAirKits Luggable XL Ultra (7-Fan)
681 m³/h CADR, MERV-13, under 35 dB, ~15 W (about £2/yr) — standard filters, no proprietary lock-in, ships from the UK.
Check price →Use code KITS10 for 10% off at checkout.Why one unit can’t do it
A purifier only cleans the room it’s in. Put a single unit in the hallway and the bedrooms stay untouched. Plan by room, starting with where you spend the most hours.
Prioritise by hours spent
- Bedrooms — you spend a third of your life there; the highest-value unit.
- Main living room — where the family gathers in the evening.
- Home office / nursery — add as needed.
Two to three units cover most UK homes. Kitchens and bathrooms rarely need one.
The multi-unit maths still works
This is where low running cost pays off. Three kits at ~15 W each cost under £10/yr combined to run — less than a single big HEPA tower — and each room actually gets clean air.