The BLU12HP Portable Air Conditioner is a sleek, yet powerful portable air conditioning unit and is regarded as one of the best in it's class. It is manufactured by one of the leading manufacturers of air conditioning units, in the world, using the latest technology and manufacturing processes. Made to an incredibly high standard, using only the highest quality components, means you will not have additional noise from vibration which you will find from comparative units. The A/A+ (A on cooling/A+ on heating) energy efficient BLU12HP portable air conditioner (cooling & heating) will create the ideal conditions for your space all year round. It provides a powerful 12,000Btu/3.5kW of cooling or heating and will cool or heat large rooms, offices, spaces of around 30 square metres. A built in dehumidifier pulls moisture out of the air to reduce humidity. The BLU12HP uses R290 refrigerant, so you can be sure you are purchasing an environmentally friendly unit which complies with industry standards. This energy efficient A rated model is packed full of useful features and is essentially a 4 in 1 unit - Air Conditioner, Heat Pump, Dehumidifier and Fan. The complimentary window sheet can be used with UK outward and inward opening windows. However, the unit can simply be used with the hose kit provided without the need for any window sheets or kits if preferred. The BLU12HP stands on multidirectional casters which allow easy maneuverability of the unit. Air Volume - 320/290/260m3/h, Set Temperature Range - 16 to 30 degrees Celcius, Sound Pressure Level - 49 to 53dBA, Sound Power Level - 62 to 64dBA. The sound pressure level is the pressure disturbance in the atmosphere measured using predefined conditions such as the location of the equipment and environmental conditions. The sound pressure is ultimately what our ears hear. Batteries for remote controller NOT included due to safety during transportation. PLEASE NOTE: The BLU12 does NOT have a swing function.