I bought carrier ac from 3 year ago. 100% copper . I am used 7 hours daily and very low electricity consumption .3-4 unit laily consumption .sound quality is very slow .
Cooling is very best. 52 digree temp. in which best cooling. Best AC for everyone . all ac is best but not copper all aluminium carrier ac copper . 10 mintue in cooling 10’*10’ room . very low watts 943 . best price of others company .