All TOSHIBA's main components have always been developed and manufactured in house. The robust single or twin-rotary compressors in all units run exclusively on inverter technology. This means that, thanks to the electronic speed regulation of the compressor, only as much power as is actually needed at a given time is produced. This saves energy, as the unit works in the partial load range the majority of the time – for a reasonably sized air conditioner, this is at least 80% to 90% of the operating time. In addition to energy savings (and therefore cost savings), inverter technology also offers advantages in terms of comfort: temperature fluctuations are prevented, so you can enjoy a pleasant indoor climate at all times.