Which Windmill Air Purifier Should You Buy? A Room-by-Room Breakdown
Windmill Air purifiers are designed to match your home's size, with models covering 2 to 5 rooms at prices from £693 to £1,596. The right choice depends entirely on how many rooms you want to clean and whether you're buying a single unit or bundling for better value.
Why Windmill Air?
Windmill Air focuses on multi-room air purification without requiring separate units in every space. Their modular range lets you scale coverage as your needs grow—buy a 2-room model now, upgrade to 4 rooms later. This flexibility matters because whole-home air quality isn't one-size-fits-all: open-plan flats need different coverage than Victorian terraces with closed doors. Windmill Air's staged pricing (£693, £967, £1,596, and a £1,576 5-room bundle) reflects realistic household layouts rather than forcing you into oversized, expensive systems.
Top Picks
Air Purifiers - 2 Rooms — £693
Best for flat-dwellers and bedroom-focused cleaning. If you live in a studio or one-bedroom flat, or only want to purify a bedroom and living room, this is your entry point. At £693, it's the most accessible Windmill Air model.
Air Purifiers - 3 Rooms — £967
Best for typical three-bed semi-detached homes. The sweet spot for families wanting to cover lounge, kitchen, and a main bedroom without overpaying. Mid-range price with practical coverage.
Air Purifiers - 4 Rooms — £1,596
Best for larger homes and those wanting comprehensive air quality across most living spaces. Covers four rooms simultaneously—enough for open-plan layouts with connected zones or four separate rooms in a bigger property.
Air Purifiers - 5 Rooms Bundle — £1,576
Best value for larger homes; oddly cheaper than the 4-room model. At just £20 more than the 4-room version, you get an extra room of coverage—this is the model to choose if you need 4+ rooms of purification. The bundling saves money compared to buying separately.
Quick Comparison
| Model | Price | Best For | Coverage | |-------|-------|----------|----------| | 2 Rooms | £693 | Small flats, targeted purification | Bedroom + lounge | | 3 Rooms | £967 | Typical family homes | Lounge, kitchen, main bedroom | | 4 Rooms | £1,596 | Larger homes, open-plan layouts | Four separate or connected zones | | 5 Rooms Bundle | £1,576 | Larger homes, maximum coverage | Five separate or connected zones |
What to Look For
- Room count match: Count your rooms realistically. Open-plan layouts (kitchen-diner as one space) need fewer units than traditional Victorian homes with closed doors. Windmill Air's staged sizing matches this—don't over-buy.
- Layout and airflow: Models are rated for multi-room coverage, but performance varies with doorway placement and air circulation. A 4-room model works best if rooms connect or doors stay open; isolated sealed rooms may need separate units.
- Price-per-room value: The 5-room bundle at £1,576 (£315 per room) beats the 4-room model at £1,596 (£399 per room). If you need four rooms of coverage, the 5-room bundle is genuinely better value.
- Future expandability: Start with 2 or 3 rooms if you're unsure; Windmill Air's modular range lets you add coverage later without replacing existing units.
The Bottom Line
Buy the 5-room bundle at £1,576 if you need four or more rooms of purification—it's the best value in the range. For smaller homes or flats, the 2-room model at £693 is genuinely efficient and won't waste money on unused coverage. Match your choice to your actual room count and layout; don't assume bigger is better if a smaller model covers your spaces.
Frequently Asked Questions
Which Windmill Air model is best for a two-bedroom flat?
The 2-room model at £693 is ideal—it covers a bedroom and living area without overspending. If your flat is open-plan with a separate kitchen area, consider the 3-room model for £967.
Why is the 5-room bundle cheaper than the 4-room model?
The 5-room bundle at £1,576 costs only £20 more than the 4-room model at £1,596, making it better value if you need multiple rooms. This pricing encourages buyers with larger homes to get more coverage for minimal extra cost.
Are Windmill Air purifiers worth the price?
Yes, if your home matches one of their room tiers. Buying a single model that covers multiple rooms is more cost-effective than buying separate purifiers for each space. Avoid choosing a model too large for your needs just to feel you're getting more—the 2-room or 3-room options suit most UK homes better than oversized units.
Can I use a Windmill Air purifier in an open-plan home?
Yes. Open-plan layouts where rooms connect (kitchen-diner, lounge-hallway) work well with multi-room coverage models. A 4-room model covers large open-plan spaces with good airflow. Sealed, isolated rooms may need dedicated units; check room connectivity before buying.

