# Which air purifier offers the best value for money under £300? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which air purifier offers the best value for money under £300?

## Products

### Clorox 11030 Medium Room Air Purifier
```yaml
product: clorox-11030-medium-room-air-purifier
brand: Clorox
price_gbp: null
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
cadr: 148, 154, 160
filter_types: Pre-filter; True HEPA; Activated carbon
coverage_area: 225
maximum_noise_level: 30
filter_replacement_interval: 6-12 months
```

- **Price:** £None [^1]
- **Summary:** Three-stage 360° filtration (pre-filter, True HEPA, activated carbon) with PM2.5 display and auto mode for medium rooms; Energy Star certified and includes a whisper-quiet 30 dB sleep setting. CADR ratings are 148 CFM (smoke), 154 CFM (dust), 160 CFM (pollen), making it suitable for regular household allergen and particulate reduction.
- **Ideal For:** Good value under £300 for medium rooms because it offers True HEPA filtration, CADR ~150 CFM and a 225 sq. ft. recommended room size while being Energy Star certified.

### Levoit Core 300-P
```yaml
product: levoit-core-300-p
brand: Levoit
price_gbp: 63.52
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
cadr: Smoke: 126 CFM, Dust: 134 CFM, Pollen: 154 CFM
filter_types: Pre-filter, HEPA, Activated carbon (pelleted)
coverage_area: 262
energy_consumption: 35.5
maximum_noise_level: 54.5
filter_replacement_interval: 6-8 months
```

- **Price:** £63.52 [^2]
- **Summary:** Compact tabletop air purifier with a 3-stage filter (pre-filter, HEPA-grade main filter, pelleted activated carbon) and VortexAir/QuietKEAP technologies; strong CADR for smoke, dust and pollen and suitable for medium rooms. Offers child lock, sleep mode and timer, making it easy to use in bedrooms, kitchens or small living areas.
- **Ideal For:** Best value under £300 because it delivers high CADR (Smoke 126 CFM; Dust 134 CFM; Pollen 154 CFM), covers ~262 sq ft, and costs little up front compared with its cleaning performance.

### Winix Winix 5510 / A231
```yaml
product: winix-winix-5510-a231
brand: Winix
price_gbp: 149.47
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
cadr: AHAM PM2.5 CADR: 252-253 CFM (dust)
filter_types: Pre-filter, True HEPA, Activated carbon, PlasmaWave
energy_consumption: Up to 53.4
filter_replacement_interval: 12 months
```

- **Price:** £149.47 [^3]
- **Summary:** The Winix 5510 is a large-room air purifier with a four-stage system (pre-filter, activated carbon, True HEPA and PlasmaWave) and smart app control; it targets high CADR performance for dust and particulate removal and includes filter-life indicators. The A231 is the compact variant sharing Winix filtration tech and suited for smaller rooms. Both suit users wanting strong particulate removal with app control and low maintenance (12-month filter interval).
- **Ideal For:** Suitable for the question because the 5510 delivers high AHAM CADR ~252-253 CFM and a 12-month filter interval, offering strong particulate cleaning for large rooms under typical £300 budgets.

---
## References & Sources
[^1]: Newegg, accessed 2026-06-11. https://www.newegg.com/clorox-11030/p/N82E16896692006
[^2]: HouseFresh (review with listed buy links), accessed 2026-06-11. https://housefresh.com/levoit-core-300-review/
[^3]: Home Depot, accessed 2026-06-11. https://www.homedepot.com/p/Winix-5510-Air-Purifier-for-Large-Room-Up-to-1881-sq-ft-in-1-Hr-True-HEPA-High-Deodorization-Carbon-Filter-Black-1022-0233-00/336188467