Just got my CHAMONNY replacement filter for my Dyson HP04, and I'm honestly impressed! The packaging was super secure—each part (HEPA + carbon) came individually sealed. At first glance, it looks nearly identical to the OEM filter.

The installation was a breeze—perfect fit with no error messages from my purifier. The only minor difference I noticed was slightly wider spacing between the HEPA folds, but performance-wise? Zero complaints!

Love that it includes both filters (unlike some aftermarket options) AND a cleaning brush. Saved me $50 compared to Dyson's price—total win!

Air quality feels just as crisp as with the original. If you're hesitant about third-party filters, this one’s a safe bet. Will update if longevity becomes an issue, but so far? 10/10.