Cromptom air collar is a average and nice product. I used it. And it is good product. In summer days it is very essential to all of. We all need a cooler or AC in summer. But many of us can't afford a AC because of its electricity bill. In that case air coller is best option so I am happy with its performance. It's service quality it can work up to 102 squarefit of a room also it supports 40 litre of water storage space. It don't disturb with a bad. Sound it provide calling experience with less noise .and we all know Compton is a reliable company. And I think it is value for money product In summer it. Helps us very well .company claimed one year free service and provide sufficient warranty period. I am satisfied with it