Voltas is one of the oldest name in air conditioners manufactures.Voltas is one of the part of TATA enterprise and is one of the largest supplier.this is the most famous name in india.voltas is famous because of its low priced AC’s and has more sale on middle class category of consumers.they had a kind of monopoly for long time run in indian market.voltas split ac is best ac in low ranges than other product.the quality these products is good and you won’t feel that your buying a lower priced air conditioner.and it is the most energy efficient air conditioner.it has anti dust filter and hydrophilic alumminium.i am recomand this product.