100% fresh, cool, outside air

Increased Oxygen levels, reduced CO2 and VOC levels

Commercial Evaporative Cooling

Evaporative cooling for commercial or industrial cooling applications, also known as adiabatic cooling, is a technology that provides cost-effective cooling for large open spaces with 100% fresh, cool, outside air to buildings without the recirculation of inside air. This fresh air ventilation creates a positive air pressure in the space, allowing efficient cooling even when doors and windows are open.

Direct evaporative coolers supply 100% continuous fresh, filtered outside air, improving ventilation rates while reducing CO2 and VOC levels to provide superior Indoor Air Quality (IAQ) for building occupants.

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fresh, cool, filtered outside air

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up to 80% energy savings


no synthetic refrigerants

How Evaporative Cooling works

As the name suggests, an evaporative air conditioner uses the principles of evaporation to cool air.

The process begins when hot and dry outside ambient air is drawn through a series of water-soaked cooling pads. This hot incoming air stream provides the heat energy for evaporation. As it passes through the cooling pads, the water evaporates and the heat in the air is absorbed, which lowers the temperature of the air. A fan then supplies the cooled fresh air to the building via a dropper or a network of ducts.

Benefits of Direct Evaporative Cooling

Up to 80% reduction in cooling energy use
when compared to a refrigerated system

Using water as a natural refrigerant (R718) with zero Global Warming Potential (GWP) and low CO2 emissions, evaporative air conditioners operate with up to 80% reduction in cooling energy use when compared to a refrigerated system performing the same duty. No matter how hot it gets outside, evaporative coolers use the same amount of power, in direct contrast to refrigerated systems, which require increased amounts of power as outside temperatures rise.

Unlike refrigerated air conditioners which have a compressor and environmentally harmful refrigerants, evaporative coolers use the natural process of evaporation, with no chemicals involved. This makes Seeley International evaporative coolers the sustainable choice for air conditioning with reduced running costs, reduced CO2 emissions and no harmful chemicals.

Direct Evaporative Cooling - Braemar Commercial Evaporative Cooler

Commercial Evaporative Cooling Benefits

  • Energy efficient operation, up to 80% more economical than refrigerated VRF systems
  • Improved IAQ (indoor air quality) with 100% outside air
  • Low cost of operation and plant equipment
  • Low maintenance and ease of service requirement
  • No high electrical demand charges even in hot weather
  • Sustainable cooling with reduced running costs, co2 emissions and no synthetic refrigerants or chemicals that harm the environment
  • Effective cooling when doors and windows are frequently opening
  • Low installation and maintenance costs 

Improved Indoor Air Quality

100% fresh, filtered outside air

Australians spend between 80 and 100% of their time indoors, either at work or at home, which demonstrates how important Indoor Air Quality (IAQ) is when it comes to workplace health and well-being.

Indoor Air Quality and ventilation are high priorities for buildings and work spaces under the building code, which is why leading companies are turning to Climate Wizard to provide SAFER-Air™ – 100% fresh, filtered outside air, improving WELL standards in buildings, particularly in applications such as offices, education, hospitality, health, and aged care.

Harness healthy workplaces - Warehouse Cooling

Workplace IAQ Benefits

  • SAFER-Air™ 100% continuous fresh, filtered outside air

  • Increased Oxygen, reduced CO2 and VOC levels are shown to improve productivity of workers and to support health and well-being

  • Provide spot cooling for worker comfort and productivity in manufacturing

  • Displace fumes and pollutants in manufacturing and warehouse applications

  • Reduce the spread of airborne viruses

Evaporative Cooling Applications

Evaporative air conditioning has a wide range of commercial cooling applications

Evaporative air conditioning has a wide range of commercial cooling applications, excelling at efficiently cooling large open spaces. Providing superior indoor air quality for building occupants, evaporative cooling supplies 100% continuous, fresh, filtered outside air, improving ventilation rates, and lowering CO2 and VOC levels

Education Facilities

Residential & Accommodation

Public & Government Facilities

Sport & Leisure Centres

Evaporative air conditioning is a low cost cooling solution, well suited to cooling factories, warehouses, sporting facilities and gymnasiums, schools, and large format retail. It provides cooling while using up to 80% less energy than refrigerated systems, which is especially useful in high-traffic areas where doors are frequently opening and closing.

Retail & Supermarket

Commercial Kitchens

Warehouses & Factories

Agriculture & Plant Propagation

The Evaporative Cooling Range

From small kitchens and restaurants to large warehouses and factories, Seeley International evaporative coolers have been designed to cover a wide range of applications and industries.

Direct Evaporative Cooling Range


Up to 3,150 L/sec. Manufactured with a UV stabilised structural polymer for reliable corrosion-free cooling. Available in a range of sizes and output configurations for smaller commercial and light industrial cooling.


Up to 2,560 L/sec. Designed for small to medium commercial and light industrial cooling applications. Solid and reliable performance with quick and easy installation.


Up to 4,760 L/sec. Ideal for medium to large installations, single and three-phase models are available with quick and easy installation.


Up to 16,300 L/sec. The RPB range is ideal for medium to very large open spaces. It is designed to stand the test of time offering easy maintenance and serviceability.


Up to 23,650 L/sec. AL Series evaporative coolers are energy efficient, cost effective and designed for large open spaces such as factories and large warehouses.


Up to 11,300 L/sec. Compact evaporative wall mounted coolers that are designed for large areas where roof top installation is not suitable, such as warehouses and sporting stadiums.


29 to 120 kW capacity and up to 16,000 L/s airflow.  Energy efficient and lightweight units that combine gas heating with evaporative cooling. Flexible installation options make this unit ideal for factories, warehouses, hotels and clubs.


Braemar’s Mobile Max is a mobile evaporative cooler that rolls wherever it’s needed to provide a quick cooling solution with easy maintenance. Made from ultra-tough polymer for lightweight and durable construction.

Australian Made

Harness the power of Australian Made

Built by Australians, for the Australian climate

Seeley International is proudly a 100% Australian owned company, designing and manufacturing world-leading air conditioning products for Australia and the world. As Australia’s largest air conditioning manufacturer, we are a global leader in developing ingenious, energy-efficient cooling and heating products.

Being made in Australia, you can rely on build quality, availability of parts and after sales service. We’re extremely passionate, and dedicated to strengthening the Australian economy, supporting local employment and building on the skills of our workforce.

Seeley International Production Operator working with machinery

Contact an HVAC Sales Engineer

Speak to one of our HVAC experts about your requirements...

Commercial Evaporative Cooling Frequently Asked Questions

  • Evaporative air conditioners (coolers) are excellent for health
  • They supply 100% fresh, filtered air into your building that is not recirculated, improving Indoor Air Quality (IAQ) of the space, supporting customer and staff well-being
  • They remove unhealthy pollution from your indoor environment
  • They provide basic moisture that the human body needs
  • They remove static electricity; they can assist in reducing the effects of illnesses such as asthma.

Yes, our products can be coupled with various technologies to provide a total climate control solution. It is best that you speak with one of our sales engineers to get the technical support needed to optimise the design of your system requirements. You can contact one of our Commercial sales engineers by clicking here.

A high inlet water temperature does not have a marked effect on the supply temperature of Seeley International’s evaporative air conditioners.

Yes. Outdoor areas have no walls to contain the cool air. These spaces would be impossible to cool using refrigerated air conditioning because this relies on recirculating and reusing air from a sealed area. Evaporative air conditioners (coolers) can easily supply a flow of fresh and cool air to open and semi open areas since the air is exhausted naturally.

In most cases evaporative air conditioners (coolers) marginally increase humidity, keeping in mind that temperature has also dropped significantly. It is the combination of temperature, humidity and airflow that creates human comfort and evaporative air conditioners are used widely around the world because they can create comfortable conditions. For example, 80% humidity and 30°C (86°F) is very uncomfortable, but 80% humidity and 16°C (61°F) is very comfortable. Comfort is also improved by increasing air velocity in hot conditions and evaporative air conditioners create sufficient air movement to minimise the effects of humidity.

Air inside the building collects heat, moisture and impurities and must be exhausted. The evaporative air conditioner (cooler) provides 100% outside air which must be relieved from the building. If the building is sealed, the effectiveness of the cooler(s) will be reduced. Mechanical extraction or even just leaving some doors or windows open helps remove unhealthy air from the indoor environment by supplying 100% fresh, filtered air. For this reason, evaporative air conditioners (coolers) are much healthier than refrigerated air conditioning.

View more Frequently Asked Questions here.