Let me start by saying – I was skeptical. After all, how could a $30 filter possibly compete with Dyson’s $80 OEM version? But after testing the CHAMONNY TP04 replacement filter for weeks, I’m officially a convert.

The Unboxing: Right away, I noticed how well-packaged everything was. The HEPA and carbon filters came individually sealed – no crushed pleats or loose carbon dust. Even the included cleaning brush felt sturdier than expected.

Installation: Slid into my Dyson HP04 like it was made for it (because it is). No error messages, no weird gaps – just a satisfying *click* when properly seated. The separate filter design (vs Dyson’s newer combined units) actually makes maintenance easier.

Performance: As an allergy sufferer with two cats, air quality matters. Post-installation tests showed identical particle capture to OEM filters during my worst allergy triggers: vacuuming cat hair and opening pollen-heavy windows. The activated carbon layer neutralized last night’s fish dinner odors impressively fast.

The Catch: It lacks Dyson’s fine prefilter mesh sandwich – noticeable when comparing side-by-side. For my medium-dust home, this hasn’t impacted performance, but heavy industrial areas might notice faster HEPA clogging.

Real Savings: At 1/3 the price of Dyson filters with near-identical performance, this lets me replace filters more frequently without guilt – crucial for maintaining peak purifier efficiency.

Final Verdict: Unless you live in a construction zone needing that extra prefilter layer, this is hands-down the smartest purchase for Dyson HP/TP/DP series owners. My only regret? Not discovering it sooner.