Answer: Honeywell recommends consulting your local heating and air conditioning contractor for a recommended set point for your dehumidistat when you are away to prevent mildew or mold from forming. Your local contractor is the best person to determine how the specific variables inherent to your system are affected by the humidity conditions of your region. Alternatively, you can contact your local utility company for assistance.

Answer: Optimal Relative Humidity (RH) is defined by industry experts* as between 40-60% RH on an average annual basis. 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.