I used this for about 3 months and then stored it. I have confirmed that it is working for this listing. There is a slight scratch on the 6th image. Please take a look. Other than that, there is no filter or internal dirt, and it is in beautiful condition. It can still be used for a long time, so please consider it! This deodorizer is equipped with plasma cluster technology to purify the air and provide a comfortable environment. - Brand: Plasma Cluster - Type: Deodorizer - Power supply: AC100V - Product size: Approximately 30cm wide x 30cm deep x 80cm high - Weight: Approximately 10kg Thank you for viewing.