Views: 5 Author: Site Editor Publish Time: 2026-01-07 Origin: Site
Indoor pools create one of the most challenging humidity environments in any building. Large water surfaces, warm water temperatures, and continuous evaporation release massive amounts of moisture into the air. If this moisture is not actively controlled, it can lead to structural damage, corrosion, mold growth, and uncomfortable conditions for occupants. A dedicated dehumidification system is not optional—it is essential.
An indoor pool can release several gallons of water vapor per hour through evaporation. Factors that increase evaporation include:
Warm pool water
High air temperature
Water agitation from swimmers or water features
Large surface area
Even with ventilation, humidity levels can quickly exceed safe limits.
Without proper humidity control, indoor pool facilities commonly experience:
Condensation on windows, walls, and ceilings
Corrosion of structural steel, HVAC equipment, and lighting
Mold and mildew growth
Peeling paint and delaminating finishes
Poor indoor air quality and strong chloramine odors
Over time, these issues can cause significant structural damage and high repair costs.
While exhaust ventilation removes some moist air, it is often inefficient and expensive for indoor pools:
Outdoor air may already be humid
Heating large volumes of makeup air is energy-intensive
Ventilation does not control humidity precisely
A dehumidifier removes moisture directly from the air, regardless of outdoor conditions.
An industrial pool dehumidifier is designed to:
Continuously remove moisture from the air
Maintain relative humidity typically between 50–60%
Recover latent heat and return it to the space or pool water
Operate efficiently under warm, high-humidity conditions
Many systems integrate with HVAC and pool water heating to maximize energy efficiency.
1. Protects the Building Structure
By preventing condensation, a wall mounted dehumidifier protects ceilings, walls, windows, and structural components from moisture damage.
2. Improves Comfort and Air Quality
Proper humidity control reduces that "sticky" feeling and helps manage chloramine odors.
3. Reduces Energy Costs
Modern pool dehumidifiers recover heat from the moisture removal process, reducing heating demand.
4. Extends Equipment Lifespan
Lower humidity slows corrosion of metal fixtures, lighting, and HVAC components.
5. Ensures Code Compliance
Many building codes and design standards require active humidity control for indoor aquatic facilities.
A dehumidifier is required for:
Public indoor pools
Hotel and resort pools
School and university natatoriums
Therapy and rehabilitation pools
Private indoor residential pools
Even small indoor pools and spas can generate enough moisture to cause damage without dehumidification.
Typical recommended conditions for indoor pools:
Relative humidity: 50–60%
Air temperature: 2–4°F (1–2°C) warmer than water temperature
These conditions minimize evaporation while maintaining occupant comfort.
