Dyson Purifier Cool Formaldehyde TP09 vs Levoit Core 400S Smart Air Purifier (2026)
Which is better? We compared both on score, owner ratings, pros and cons.
Dyson Purifier Cool Formaldehyde TP09
HEPA H13, formaldehyde destruction, 360° oscillation, cooling fan, app. The premium air purifier-fan.
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Levoit Core 400S Smart Air Purifier
True HEPA H13 for rooms up to 40m². The best-value genuine air purifier available.
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| Dyson Purifier Cool Formaldehyde TP09 | Levoit Core 400S Smart Air Purifier | |
|---|---|---|
| 247Verdict Score | 9.2/10 | 9.2/10 |
| Owner Rating | 4.5★ (4,800) | 4.6★ (28,700) |
| Verdict | Excellent | Excellent |
| Filter | HEPA H13 + formaldehyde | True HEPA H13 |
| Coverage | 10m projection | Up to 40m² |
| Warranty | 2 years | 2 years |
Quick Verdict
This is a genuine draw — both score within 0.15 points of each other. Dyson Purifier Cool Formaldehyde TP09: HEPA H13, formaldehyde destruction, 360° oscillation, cooling fan, app. The premium air purifier-fan.. Levoit Core 400S Smart Air Purifier: True HEPA H13 for rooms up to 40m². The best-value genuine air purifier available.. Choose based on your specific needs.
Pros & Cons Side by Side
Dyson Purifier Cool Formaldehyde TP09
- Solid-state formaldehyde sensor detects and destroys formaldehyde continuously — unique feature
- HEPA H13 captures 99.97% of particles down to 0.1 microns
- Projects purified air up to 10 metres via Air Multiplier technology
- Works as a cooling fan simultaneously — dual function replaces separate devices
- Dyson app shows real-time air quality data and auto-mode manages purification
- £500+ for an air purifier requires justification — Levoit Core 400S delivers excellent HEPA purification at 20% of the price
- Fan noise at higher speeds is noticeable for sleeping use
- Large footprint for a single-room device
Levoit Core 400S Smart Air Purifier
- True HEPA H13 captures 99.97% of particles 0.3 microns and above
- CADR 260m³/h — independently tested, not just manufacturer claims
- PM2.5 laser sensor triggers auto mode when air quality drops
- VeSync app provides air quality history and scheduling
- Relatively low filter running costs — ~£25-35/year vs Dyson's £70+
- Purification only — no heating or cooling like Dyson HP09
- Real-world coverage is 40m² — ignore the 'large room' marketing for anything bigger
- Auto mode fan noise at maximum (52dB) is noticeable
FAQ
Which is better, Dyson Purifier Cool TP09 or Levoit Core 400S Smart Air?
This is a genuine draw — both score within 0.15 points of each other. Dyson Purifier Cool Formaldehyde TP09: HEPA H13, formaldehyde destruction, 360° oscillation, cooling fan, app. The premium air purifier-fan.. Levoit Core 400S Smart Air Purifier: True HEPA H13 for rooms up to 40m². The best-value genuine air purifier available.. Choose based on your specific needs.
Is the Dyson Purifier Cool TP09 worth the extra cost?
The Levoit Core 400S Smart Air Purifier matches or exceeds it at a potentially lower price point.
Also Worth Considering
Levoit Core 600S Smart Air Purifier
H13 HEPA, 1076 sq ft, smart app, air quality sensor, quiet sleep mode. Large-room air purifier.
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Dyson Purifier Hot+Cool HP09
Heats, cools and purifies. HEPA H13 + activated carbon. Air quality sensors with real-time display.
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Winix 5500-2 Air Purifier
True HEPA with PlasmaWave technology. Sleep mode at 27.8dB. One of the best-reviewed air purifiers in the US.
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