I accidentally purchased this, and it was the wrong size for my air purifier, so I'm selling it. I opened the package, but it's new and unused. ⚪︎ Activated carbon deodorizing filter ⚪︎ Dust collection HEPA filter Size: Approximately 22 x 40 cm ⚪︎ Humidifying filter Diameter: Approximately 23 cm ※ Please confirm the size and compatible models before purchasing. ※ Please feel free to comment if you have any questions.