Larry Messerly, RPT Prescott/Phoenix Phoenix, AZ has no water in the air. At 10%, expect the two days a year it rains, there is no water removal with refrigerator type air conditioners where you live. You are like using evaporative type coolers that actually do put water into the air. If you lived where the humidity is 95% and the temperature is 95 degrees a evaporative type cooler will not work at all because the moving air cannot absorb more water so refrigerator type air conditions are used that DO remove water from the air, thirty to fifty GALLONS a _day_ or more, depending upon space size. Part of the removed moisture is used to cool the condenser, which gets hot from heat exchange, the rest is allowed to run down a drain or accumulate in a pool outside. You car air conditioner is not an evaporative type. Newton
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