Honeywell HM506 Owner's Manual - Page 4

Operating Manual Maintaining ideal humidity Optimal Relative Humidity (RH) is defined by industry experts* as between 40-60% RH on an average annual basis, and 35% during the heating season in dry climates. An environment with too little humidity leaves the body vulnerable to viruses and bacteria, and can cause woodwork in the house to shrink and crack. On the other hand, too much humidity creates ideal conditions for mold and mildew growth. Proper indoor humidity can also help you save money on energy bills. When maintained properly, your equipment won't have to run as much because humidified air feels warmer in the winter. ASHRAE recommeded winter design level Bacteria OPTIMUM ZONE Viruses Fungi Mites Respiratory Infections Allergic Rhinitis and Asthma Chemical Interactions Ozone Production 0 10 20 30 40 50 60 70 80 90 100 M24780 * American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) 69-2035EFS-05