CAL-IN's engineers consult on, design and build residential, industrial, and commercial humidification systems. In industrial settings, systems are often hung from the ceiling among duct work. Humidification is intimately linked to heating and cooling systems. The level of humidity in the air is also a function of temperature. Therefore, CAL-IN often integrates humidity control systems with cooling and ventilation systems.

Areas in which delicate components such as electronics are assembled require precise humidity levels. Humidification is achieved using liquid atomizers that distribute moisture to the area, coupled with accurate sensors that measure ambient humidity.

In humidification, two quantities are commonly used. Absolute humidification is expressed in grams of moisture per cubic volume of air, while the more commonly used relative humidification is expressed as a ratio between the amount of moisture currently in the air and the maximum moisture the air could hold before condensation occurs. A typical comfortable level of relative humidification is between 35% and 50%. Excess humidity can cause the growth of mold or fungus. Too little humidity can cause static discharge or the accumulation of unwanted dust, contributing to allergies.

Maintaining comfort requires a certain amount of ambient humidity. Adequate humidification in a manufacturing environment stabilizes moisture in materials preventing moisture damage. In all environments, humidification reduces fire risk and static electricity while making the area feel comfortable for occupants.

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