What are acceptable levels of humidity for walk-in refrigerators and coolers?
According to normal humidity readings found in surveyed coolers located in southern regions of the United States, average relative humidity runs from 84 to 86 degrees. According to USDA, FDA, and US restaurant association, 78 degrees is acceptable. With Envriashield humidity control filters during the initial testing period, temperatures will drop after the 1st week from 84 to 86 degrees by 50%-60%. After initial testing, temperature will rise to the 70% mark.
