Review on Pro Breeze Premium Electric Dehumidifier: Small, Powerful 2200 Cubic Feet (250 sq ft) Model - Compact, Portable & Efficient - Perfect for Home, Basement, Bedroom, RV, Office, and Garage - Ideal Home Dehumidifiers by Betsy Clark

Purchased for a 12 x 14 foot bedroom with standard height ceilings (so definitely meets the specs listed). The relative humidity at night is usually around 60-65%. That being said, for about 3 days (door closed) I've ever seen it drop about 1-2% and the tank was only about 1/3 full. I thought it would be more efficient than cheaper thermoelectric humidifiers, but it wasn't enough for my needs. Sent it back and am going to buy a compressor dehumidifier for my bedroom.