Dyson Pure Cool TP04chat_bubble_outlineFrom real comments

Air purification performance earns strong praise from allergy and smoke-exposure sufferers. Multiple users report real relief from allergies, itchy eyes, and smoke-tainted air, with noticeably cleaner-feeling air and better sleep. One user in bushfire-hit Sydney called it a lifesaver for air quality, while others credit it with reducing antihistamine use during allergy season. This functional benefit is the most consistently praised aspect across comments, even among those frustrated by price or noise.

A recurring high-pitched screeching noise frustrates a notable share of owners after months of use. Several commenters describe a whining or screeching sound developing after 3 months to over a year of use, often at low fan speeds or on standby, worsening over time. Some say Dyson support couldn't resolve it or kept sending replacement units with the same issue. Others separately note inherent bladeless-fan noise from air forced through narrow slits, even on units without the screeching defect.

Price and running costs are a common sticking point despite general satisfaction. Users cite prices from $250 (used) up to $799 AUD or €600-700, alongside roughly $70/year for replacement filters, calling it expensive though often worth it for the air-quality benefit. Some found much better deals via secondhand or non-Amazon retailers. A few also wished for built-in AC given the premium price, and one noted third-party filters may reduce performance versus genuine ones.