There can be a lock button which can prevent accidental modifications to the other controls. The Honeywell Portable Evaporative Cooler (model CO301PC to be precise) is a big “swamp cooler” sort of system on wheels which allows it to be freely moved between areas of want. Evaporative coolers use only water to chill the air,… Continue reading Honeywell Tc09peu 26 Inch Indoor Transportable Evaporative Air Cooler With 3-in-1 Operate, Low Water Alarm, 3 Fan Speed, Digital Management Panel, Washable Dust Filter, Castor Wheels, And Distant Control