Purchased about six months ago for 69,000 yen. (Operation confirmed on October 30, 2024) Product specifications are as follows: [Specifications] ● Power supply (V): Single-phase 100 ● Air volume (m3/min) 50Hz: 34 ● Air volume (m3/min) 60Hz: 37 ● Suitable duct diameter (mm): 280 ● Noise level (dB(A)) 50/60Hz: 76/77 ● Blade diameter (mm): 250 ● Number of fan blades: 6 ● Output (kW) (50/60Hz): 0.21/0.3 ● Standard power consumption cost (50Hz): 5.67 yen/h ● Current value (50Hz/60Hz): 2.9A/3.2A ● External dimensions (mm) Width: 296 ● External dimensions (mm) Depth: 315 ● External dimensions (mm) Height: 376 ● Standard power consumption cost (60Hz): 8.1 yen/h ● Power consumption (W) (50/60Hz): 210/300 Please understand that this is a used item, and judge the quality based on the photos. No claims and no returns are accepted.