Brought 2 ACs whirlpool 3d cool 5 star 1.5 tons. Claims to cool ur world in 5 min. Can’t cool my 168 sq ft office even at 19 degree for 1 hr. Whirlpool service guy says cooling is normal. Never never buy this ac. My Videocon 1.5 ton 2 star 4 yr old chills me in flat 10 min. My Samsung 3 star 1.5 ton does the same even after 6 years.