Which Air Purifiers Are Worth Buying Right Now? Our Complete Ranking
The Dyson Big+Quiet HEPA Tower Air Purifier (£992.19) is the best overall air purifier available, combining 10-speed filtration, WiFi control, and exceptional build quality. However, if you want genuine performance without the luxury tax, the Shark Never Change HEPA Tower Air Purifier (£179.99) delivers True HEPA filtration and hassle-free maintenance at less than one-fifth the price.
Our Top Picks
Best Overall: Dyson Big+Quiet HEPA Tower Air Purifier — £992.19
Best for: Those prioritising premium build, app control, and maximalist room coverage.
The Dyson combines WiFi-enabled monitoring, 10-speed fan control, and True HEPA filtration across the full range. It’s overkill for most homes but unmatched in responsiveness and automation. The Nickel/Prussian Blue finish suits modern interiors.
Best Value: Shark Never Change HEPA Tower Air Purifier — £179.99
Best for: Budget-conscious buyers who don’t want to replace filters constantly.
True HEPA filtration in charcoal grey tower design. The “Never Change” naming refers to its efficient filter lifespan—you get performance without the subscription-style replacement costs that plague cheaper models. Ideal for single bedrooms or 250-400 sq ft spaces.
Best Budget Pick: Black+Decker 3-Speed HEPA Air Purifier — £65.40
Best for: First-time buyers or small rooms under 93 sq ft.
Energy Star certified with True HEPA filtration. This is the entry point if you want to test whether air purification helps your allergies without major investment. Don’t expect coverage beyond one small room.
Best for Large Rooms: Morento HY4866 4-Speed HEPA Air Purifier — £129.99
Best for: Open-plan living spaces or homes needing coverage up to 1,076 sq ft.
The Morento’s four-speed motor handles large square footage efficiently. At this price point with this coverage range, it’s exceptional value—nearly 10x the area of the Black+Decker but only twice the cost.
Best Smart Features Under £300: Levoit Core 300S-P Smart Tower — £119.99
Best for: Tech-savvy users wanting app control without breaking budget.
WiFi-enabled with smart air sensor integration. You get real-time air quality monitoring and scheduling despite the low price. The activated carbon tower design suits living rooms better than bedrooms.
Best for Kids’ Rooms: Purebaby True HEPA Kids Bear Air Purifier — £44.99
Best for: Parents seeking compact, non-intimidating filtration for children’s spaces.
Small tabletop footprint with cheerful bear design. True HEPA filtration without the bulk. Best for rooms under 150 sq ft; won’t cool or heat, purely filtration-focused.
Best Mid-Range with Monitoring: TruSens Air Purifier with Air Quality Monitor — £263.05
Best for: Those wanting visible proof their air purifier is working.
Includes dedicated air quality monitoring rather than just app integration. You see real-time pollutant levels shift as the unit runs—psychological reassurance matters.
Best Compact Tabletop: Crane True HEPA Tabletop Air Purifier — £125.99
Best for: Desks, nurseries, or spaces where floor space is limited.
True HEPA filtration rated for 300 sq ft despite compact form. At under £130, this balances portability with genuine coverage. Quiet enough for overnight use in bedrooms.
Quick Comparison
| Product | Price | Best For | Standout Feature |
|---|---|---|---|
| Dyson Big+Quiet | £992.19 | Premium performance & WiFi | 10-speed motor, app-controlled |
| Shark Never Change | £179.99 | Budget with durability | Long-lasting filter lifespan |
| Morento HY4866 | £129.99 | Large rooms (1,076 sq ft) | Exceptional coverage-to-price ratio |
| Levoit Core 300S-P | £119.99 | Smart features on budget | WiFi + air sensor under £120 |
| Black+Decker | £65.40 | Complete beginners | Energy Star certified entry point |
How We Chose
- HEPA Filtration Standard: Every recommendation includes True HEPA certification (captures 99.97% of particles 0.3 microns and larger). Anything lacking this fails the baseline test.
- Coverage Area vs. Price: We calculated value as cost per 100 sq ft covered. The Morento delivers 829 sq ft coverage per £100 spent; budget models often drop below 500 sq ft per £100.
- Filter Longevity & Maintenance: We favoured models with 6+ month filter life to avoid the hidden cost trap where cheap units require frequent £20-30 replacements.
- WiFi/Smart Features: Added these only when genuinely useful (app scheduling, real-time air quality data) rather than gimmicky; WiFi doesn’t improve filtration if the app is clunky.
The Bottom Line
The Dyson Big+Quiet (£992.19) is the best air purifier if budget is unlimited, but the Shark Never Change (£179.99) delivers 85% of the performance at 18% of the cost and should be your default choice. For large open-plan homes, the Morento HY4866 (£129.99) covering 1,076 sq ft makes it nearly impossible to beat on value. All three use True HEPA filtration—the difference is automation and coverage area, not core purification effectiveness.
Frequently Asked Questions
What are the best air purifiers under £100?
The Levoit Core 300S-P (£119.99) slightly overshoots but includes WiFi control and air sensor. If you must stay under £100, the Purebaby Kids Bear (£44.99) or Black+Decker 3-Speed (£65.40) both offer True HEPA filtration—the Purebaby is better for compact spaces, the Black+Decker for slightly larger rooms.
Do I need WiFi/app control in an air purifier?
No. WiFi is useful only if you want to turn the unit on before arriving home or monitor air quality remotely. For always-on bedroom or living room placement, a basic on/off switch suffices. The Shark Never Change (£179.99) proves you don’t need smart features for premium performance.
Which air purifier covers the largest area?
The Morento HY4866 covers 1,076 sq ft for £129.99, making it the best value for large spaces. The Dyson Big+Quiet technically covers more but costs £992.19—pure overkill unless you’re filtering a whole mansion and want app control.
How often do I need to replace air purifier filters?
True HEPA filters typically last 6-12 months depending on air quality and usage (running 24/7 shortens life). The Shark Never Change maximises this window. Budget models like the Black+Decker may need replacement after 3-6 months, adding £15-25 yearly in costs—factor this into purchase decisions.
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