The Essick Air four-speed tower humidifier has been given an average review of 3.6 out of 5 by Amazon's customers. Many consumers have praised the humidifier's space-maximizing design, but others have complained about its durability and tendency to leak.
Multiple reviewers at Amazon like how the Essick Air four-speed tower humidifier has a relatively quiet fan, even when turned to its highest setting. The unit is also fairly easy to set up and operate. One consistent criticism of the humidifier, though, is that the craftsmanship seems to be a little flimsy. Some reviewers also complain that it is difficult to perform the necessary maintenance on the device that is required about every four to six weeks.