Evaporative Cooling

Many people mistakenly believe they live in a geographic locale that is too humid and hot for an evaporative cooler (also known as a swamp cooler) to be effective. But the laws of physics dictate that as temperatures rise, relative humidity falls. In this case, evaporative coolers can be quite a bit more effective than spot coolers, portable air conditioners or industrial fans alone, especially if you are interested in keeping large living or working spaces cool.

A review of weather data from hot weather regions shows that even in the most humid climates, midday relative humidity levels are well within the range where WayCool/Pro-Kool model evaporative coolers can provide relief from the heat. Daytime humidity levels tend to begin in the 90% range during the morning hours when it is cooler, but with 90F and above, it's almost impossible to have humidity levels above 70%.

Aquality Water also has you covered when it comes to personal cooling devices. Phase change materials or PCM are at the core of the deluxe cooling vests we carry. To cool, PCM melts to a liquid state as it absorbs heat. This long lasting, temperature specific, phase change cooling effect will maintain temperatures ranging between 40F/4C up to 65F/18C. This technology is also employed in the ArctiCollar Cooling Neckwrap product we offer. Many of these items can be used to relieve the discomforts of Multiple Sclerosis (MS), Menopause and Night Sweats.


City, State

Relative Humidity %

WayCool temp. drop at 95F

Baton Rouge, LA

Upper 50's

12F

St. Louis, MO

Lower 50's

16F

Phoenix, AZ

Upper 10's

25F

Philadelphia, PA

Mid 50's

14F

Orlando, FL

Upper 50's

12F

Air
Temperature

Temp. drop at
40% RH

Temp. drop at
50% RH

Temp. drop at
60% RH

80F

18F

14F

11F

85F

19F

16F

11F

90F

20F

15F

11F

95F

21F

16F

12F

100F

19F

16F

11F

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