Conditions that affect production
- Very dry winter production air
- Variation between manufacturing zones
- Outdoor-air replacement from process exhaust
- Environmental requirements that differ by process or material
Define the boundaries of each zone before calculating load. Production, storage and specialized process areas may have different requirements, and they should not automatically share one humidity set point.
Gather measured exhaust and makeup-air flows along with temperature and RH records. Local extraction and changing production schedules can affect outdoor-air replacement even in a building with otherwise stable HVAC operation.
FanMist combines atomized water, moving air and automatic controls. A facility review should address water treatment, evaporation space, equipment clearances and sensor placement before determining whether that arrangement fits the process.
Set the right humidity target
The IHC electronics load guide uses 40% RH at 72°F as a sizing example. The facility’s actual operating limits must come from its process, material and quality requirements. Humidity control supports the environment; it does not replace an established ESD program or moisture-sensitive-device handling procedures.
Begin with the process specification
For an assembly zone, document the permitted temperature and RH range, then map the exhaust and makeup air serving that space. Review those inputs with the quality and facilities teams before selecting system output or placing fans.
Understand the load calculation →Common questions
Does raising RH replace ESD protection?
No. Keep the facility’s established grounding, handling, monitoring and other ESD controls. Humidity is an environmental consideration within that broader program.
Can one set point serve the whole facility?
That depends on the processes and materials in each zone. Review their requirements first, then decide how to group or separate the controls.