I would not put anything on it that has large inrush current other than a small fan. A compressor or air conditioner would be too much for it. I have copied the load types from the manual below.
Supported Load Types
Coffee Maker: 1500 W Heater: 1500 W Toaster: 1500 W. Desk Lamp: 86.4 W Humidifier: 600 W Fan: 74.5 W LCD: 74.5 W Iron: 1500 W