One of the good air cooler in market that is kenstar company dx series air cooler. I am using this air cooler since 3 years onwards till now I didnot face any problem with this and also air is also good like ac you can adjust it how much you want its adjustable facilities are given this air cooler is rough and tough.
Any time you can use it especially in summer seasons air cooler is very essential to everyone so if any one wants to buy air cooler they can purchase kenstar company cooler that DX series its awesome cooler, and its has handle facility as well you can move it anywhere in the room it has facility to put water for getting cool air but as per my experience no need to put water also normally you will get cool air only in this air cooler.