From those humble beginnings, when water coolers used large blocks of ice to chill the water, to the self-contained electric water cooler in 1938, there are now a plethora of models and types to fit every need.
Although first "barrier-free" electric water cooler was invented in 1972 by the Haws Corporation, it wasn't until the passage of the Americans with Disabilities Act in 1990 that these accessible water coolers came into their own.
Bottled water dispensers have been around since before the middle of the 20th Century. These units depend on gravity to provide the water in a free standing unit. Cooling units were added later.
Today, many water coolers or dispensers include a heating element to provide hot water along with chilled water. Some are even offered in designer colors and shapes to fit into any decor.
Early drinking fountains provided room temperature drinking water, but demand led to the development of fountains that could provide cooler water thereby killing the micro-organisms responsible for pollution and disease. But early water coolers did not have a discrete water treatment method for purifying the dispensed H2O.
As the years went by, water coolers further evolved into smaller, lighter, and more efficient units. They also varied in shape and size, depending on the needs of the consuming public.
With health and safety being the main drivers in recent years, modern water coolers were created with inbuilt purifying systems with some having a reverse osmosis system that removes chlorine and destroys