Thank you for viewing! (*≧∀≦*) ❤️ Price negotiations are welcome! ⭐️ First come, first served! ⭐️ Initial defect guarantee included. ⭐️ Opened only once for inspection and photography, but it is a new, unused item, so please rest assured! Air purifier replacement filter Unopened. I'm sorry, but I don't know the manufacturer. Please check the photos to see if the size is correct. Size: Approximately 50cm (height) x 30cm (width) x 7.3cm (thickness) Management number: A-143$$1480