The Voltas 185 DZA is a high power air conditioner that weighs 1.5 tonne and is an efficient window AC that can be fitted anywhere. Rotary compressor The Voltas higher power air conditioner comes with a rotary compressor . Anti-dust filter The anti-dust filter fixed inside the AC is very useful and acts as a helping hand by clearing the dust inside the air conditioner. Different modes Different in-built modes in the air conditioner are very useful in setting the air conditioner as per his/her comfort level. These modes are auto-restart, timer, sleep mode, and turbo mode. An ideal Product This Voltas Air Conditioner comes with Energy certification of 5 star making it the most energy efficient category AC. You can also check out our buying guide at Amazon India on air conditioners for more clarity.