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Desiccant Dehumidifier

Desiccant systems are a variation in gas cooling. They remove unwanted moisture and allow for precise control of humidity levels.
They supply “pure dehumidification” and are generally used in buildings that are otherwise conventionally cooled. Desiccants have particular advantages for any application that can gain from enhanced dehumidification over and above that normally done by conventional cooling systems.

Desiccant dehumidification technology has a successful track record over more than 70 years for industrial applications such as product drying and corrosion prevention.

In commercial buildings, the most common application for a desiccant system is to remove humidity from outdoor ventilation air. In humid climates, a large flow of ventilation will often build up indoor humidity to a level that cannot be adequately controlled by conventional air conditioning systems. By using a desiccant system to produce dry outdoor ventilation air, the cooling load is reduced and the tendency to build up humidity is eliminated.

It has been used for many years in sanitised rooms, hospitals, museums, and other special cases requiring highly controlled humidity levels. There also exist portable systems that allow for on-demand use.


Desiccant systems use the heat from a burner to generate hot air which is then used to drive the humidity off of the desiccant wheel. The fuel used in this burner does not affect the process. LPG can be used by equipping the system with the appropriate burner.

There are two major types of desiccant systems:
Solid desiccant systems, which are composed of a solid desiccant  material or material with a desiccant coating usually arranged in a wheel. There also exist liquid desiccant systems that are similarly used for dehumidification, largely in industrial processes. These utilise a lithium chloride and water salt solution.  

Appliance features generally vary by model and manufacturer.
Common features include:

  •  Customisability to meet specific indoor air quality needs
  •  A wide variety of equipment types and sizes
  • Portable units that are usable in emergency situations 


Desiccant dehumidifier systems prevent the growth of mould, mildew, and other allergens. They also help in speeding up the finishing of construction work as well as quickly and efficiently providing aid in the restoration of flood damaged buildings amongst others.


  • Buildings under construction awaiting permanent A/C systems
  • Reduces concrete slab “cure” time
  • Wall drying
  • Drying of paint layers & other layers.
  • Ceiling Tiles

Indoor Moisture Control/Water Damage Restoration

  •  Reduces Expense to Restore Property after: Firefighting, Flooding, Natural Disasters, Pipe Breakage, Sanitary or Wash Back-up
  • Maintain consistent air quality in museums, hospital

Surface Preparation & Treatment

  • Maintain proper conditions for painting, blasting, & coating
  • Piping (chemical or power plant)
  • Tanks (chemical & shipboard)
  • Steel Structures (petrochemical & civil)

Industrial Applications

  • Process conditioning for seasonal, emergency, or trial applications of dehumidification equipment