Dyson Purifier Cool TP10

The Purifier Cool TP10 is Dyson's most accessible fully sealed machine, and the sealing is the point: the whole filter path is gasketed to HEPA H13 standard, so pollen, fine dust and other allergens can't leak back into the room past the media. The combined HEPA and activated-carbon filter captures fine particles while also tackling odours and some gases. An on-board sensor shows real-time particulate levels on the LCD and in the MyDyson app, and auto mode ramps the fan when it detects a spike. Usefully for hay fever, it doubles as a cooling fan in summer, exactly when sufferers want windows shut. Dyson quotes whole-room POLAR test coverage rather than a CADR figure, so cross-shop on that basis. The trade-offs are price and the annual combined filter (typically around £65-£75), which is what pushes value-focused buyers toward the Levoit below; but for a sealed system that also cools and self-adjusts, it covers the allergy essentials thoroughly.