Our Verdict
Dyson Purifier Cool Formaldehyde TP09 Wins

It covers a larger area at 101 sq ft vs. 73 sq ft. Choose the Dyson Purifier Hot+Cool Gen1 HP10 if a heating function is essential for year-round climate control in smaller rooms.
Spec Comparison
4 specs compared
| Specification | ![]() | ![]() |
|---|---|---|
| Price | $458 | $362 |
| Rating | 4.2(615) | 4.5(917) |
| Cadr Smoke | — | — |
| Coverage Sq Ft | 101 | 73 |
| Noise Level db Min | — | — |
| Filter Cost Yearly | — | — |
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Frequently Asked Questions
Common questions about this comparison
Which Dyson purifier is better for larger rooms?
The Dyson Purifier Cool Formaldehyde TP09 is better for larger rooms, offering a coverage of 101 sq ft. The Dyson Purifier Hot+Cool Gen1 HP10 covers a smaller area of 73 sq ft.
What is the main functional difference between the two models?
The HP10 provides heating, cooling, and air purification, making it suitable for all seasons. The TP09 offers cooling, air purification, and specific formaldehyde detection, but no heating function.
Does either model specifically address formaldehyde purification?
Yes, the Dyson Purifier Cool Formaldehyde TP09 is specifically designed to detect and destroy formaldehyde. The HP10 purifies general air pollutants but does not highlight specific formaldehyde treatment.
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