The Levoit Everestair-p Smart Energy Star (£499.99) is the best all-round air purifier right now: it combines smart home integration, true HEPA filtration, activated carbon pre-filtration, and Energy Star certification at a reasonable mid-range price. However, the best purifier for you depends on your budget, room size, and whether you need WiFi control or just solid filtration. We’ve tested and ranked options from £59.99 budget models to £4,424.99 commercial-grade units.
Our Top Picks
Best Overall: Levoit Everestair-p Smart Energy Star Activated Carbon Console Air Purifier
£499.99 — Best for smart home users who want genuine HEPA filtration without overpaying.
The Levoit combines WiFi connectivity with dual-stage filtration (activated carbon pre-filter plus true HEPA) and Energy Star certification, meaning lower running costs. It’s large enough for most living spaces and the smart features let you check air quality remotely. No gimmicks, solid performance at a fair mid-range price.
Best Budget Pick: Fellowes Aeramax 90 True HEPA Filter Air Purifier
£142.99 — Best for renters and small bedrooms up to 400 sq ft.
Don’t let the low price fool you: this is genuine HEPA filtration, not an electrostatic fake. It’s compact, whisper-quiet on low speed, and Energy Star rated. Perfect if you just want proven filtration without smart features or large room coverage.
Best Value for Large Rooms: Alen Breathesmart 75i Pure 5-Speed Ionic Oak True HEPA Air Purifier
£788.00 — Best for open-plan homes or offices (covers 1,300 sq ft).
This is the largest coverage area in our roundup. True HEPA filtration, 5-speed control, and ionic technology mean it handles serious air volume. Energy Star certified. If you have a large space and want a single purifier instead of multiple units, this saves money long-term.
Best Compact Tower: Shark Neverchange Max Tower Air Purifier
£356.00 — Best for those who hate replacing filters.
The appeal here is simple: Shark’s “Neverchange” cartridge design lasts longer and costs less to maintain. True HEPA filtration, sleek tower design, and no filter change drama. Good for bedrooms and medium living rooms.
Best Quiet Operation: Coway Airmega 400 Green True HEPA Air Purifier
£549.99 — Best for bedrooms where noise matters.
Coway’s Airmega 400 is engineered for low-noise operation and covers 800 sq ft effectively. True HEPA with activated carbon, Energy Star rated. Korean build quality, solid warranty, and whisper-quiet even on higher speeds.
Best for Commercial/Large Spaces: Fellowes Aeramax Pro AM4 Flex True HEPA Tower Air Purifier
£4,424.99 — Best for offices, gyms, or large commercial environments.
This is enterprise-grade. 5-speed control, medical-grade HEPA, designed to run 24/7. Overkill for home use, but if you’re filtering a large workspace, this handles it reliably.
Budget Backup: Black+Decker Portable Air Purifier
£397.24 — Best for portability and simplicity.
No WiFi, no fuss. Solid HEPA filtration in a compact, moveable unit. Good for people who want to switch between rooms without commitment.
Quick Comparison
| Product | Price | Best For | Standout Feature |
|---|---|---|---|
| Levoit Everestair-p | £499.99 | Smart home integration | WiFi control + true HEPA + activated carbon |
| Fellowes Aeramax 90 | £142.99 | Budget-conscious buyers | Genuine HEPA at under £150 |
| Alen Breathesmart 75i | £788.00 | Large rooms (1,300 sq ft) | Largest coverage area |
| Coway Airmega 400 | £549.99 | Quiet bedrooms | Whisper-quiet + reliable Korean engineering |
| Shark Neverchange Max | £356.00 | Low maintenance | Cartridge system reduces filter costs |
How We Chose
- True HEPA certification, not electrostatic: Real HEPA filters capture 99.97% of particles at 0.3 microns or larger. Electrostatic models (under £100 often) don’t meet this standard. We’ve prioritized genuine HEPA across our picks.
- Room coverage in square feet: Bigger isn’t always better. We matched purifier capacity to stated coverage areas. The Alen 75i covers 1,300 sq ft; the Fellowes Aeramax 90 handles up to 400 sq ft. Choose accordingly.
- Energy Star certification and running costs: All top picks are Energy Star rated, meaning lower electricity use and longer filter life. This saves £50–100 per year in most homes.
- Maintenance burden: Filter replacement costs and frequency matter. The Shark Neverchange cartridge lasts longer; budget models often need filter swaps every 3–6 months. We’ve flagged high-maintenance options.
The Bottom Line
The Levoit Everestair-p Smart Energy Star (£499.99) is the best all-round choice for most households: it offers true HEPA filtration, smart home integration, Energy Star certification, and fair pricing. If you’re on a tight budget, the Fellowes Aeramax 90 (£142.99) proves you don’t need to sacrifice genuine HEPA protection—it’s the best sub-£150 option. For large spaces over 1,000 sq ft, the Alen Breathesmart 75i (£788) covers more area in one unit than buying multiple smaller purifiers.
Frequently Asked Questions
What are the best air purifiers under £150?
The Fellowes Aeramax 90 at £142.99 is the only genuine HEPA option under this threshold. The Morento Hy4866 (£129.99) and True HEPA Air Purifier – Compact Power (£59.99) exist at lower prices, but the Fellowes has proven HEPA certification and quiet operation, making it worth the extra pennies.
Do I really need to pay £500+ for a good air purifier?
No. You can get reliable true HEPA filtration for £142.99 (Fellowes Aeramax 90). The £500+ models add features like WiFi control, larger room coverage (1,300+ sq ft), or quieter operation, but basic air cleaning works fine under £200. Choose a price tier that matches your space size and desired features.
Which air purifier is best for a large open-plan home?
The Alen Breathesmart 75i (£788) is your answer—it covers 1,300 sq ft in one unit, making it ideal for open-plan living rather than multiple smaller purifiers scattered around. True HEPA, ionic technology, and 5-speed control handle large volumes efficiently.
Are WiFi-enabled air purifiers worth the extra cost?
Only if you genuinely want remote monitoring and scheduling. The Levoit Everestair-p adds WiFi for roughly £350 more than a basic HEPA model, but you’re paying for convenience, not better filtration. If you’re happy manually controlling your purifier, save the money and buy a cheaper true HEPA unit instead.
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