I've used this for several months. I don't smoke, and I don't have any pets. I stopped using it because of a strange odor coming from the filter. There is no strange odor from anything other than the filter. Therefore, I will sell everything except the filter. (If you want the used filter, I can send it to you attached.) Plasma cluster 7000 equipped, low-noise design air purifier. Compact model with W filter. [Product Specifications] Model Name: FU-T40BK-H Brand: SHARP Retail Price: ¥42,800 (tax included) Function: Plasma cluster 7000 Volume: Low noise design (maximum volume 44dB) Accessories: Instruction manual, AC adapter Plasma cluster applicable floor area (approximate): Approximately 14 tatami mats (approx. 23m2) Standby power consumption (W): Approximately 0.3 External dimensions (mm): Width 235 x Depth 235 x Height 372 Weight (kg): Approximately 3.9 Power cord length (m): Approximately 2.0 (AC adapter) Filter: Dust collection (electrostatic HEPA) / deodorizing integrated filter (replacement目安: Approximately 2 years) Anti-bacterial/anti-mold dust block pre-filter Sensor: Odor sensor Monitor: Clean monitor (4 levels) Purification method: "Plasma cluster 7000" air purification & filter purification