Cool Breeze QMD230 Maxima

evaporative cooling

maxima evaporative cooling air con


Evap cooling saves the earth

Create A Better Work Environment with Evap Cooling

The Cool Breeze Maxima QMD230 and QAD230 Evaporative Coolers deliver reliable, high power cooling and ventilation to your premises at a fraction of the cost of traditional air conditioning. By introducing a continual flow of 100% fresh air it expels the hot air together with pollutants.  Evap Cooling uses no CFC’s and has minimal energy demands and so when it comes to CSR it is green to it’s core.

Superior fan performance, high capacity Techo motors, massive cooling pads (to maximise evaporation) result in exceptional efficiency.

Testimony to it’s superior performance, it is the only evaporative cooler in the UK with published BSRIA test results.

Take Cooling and Ventilation to the Max

The New Cool Breeze QMD230 Maxima delivers on every count. Low on cost (from just a £1 a day to run a unit). Powerful on Cooling (nothing beats it for large open spaces). Big on Ventilation (clean fresh air displaces and expels hot polluted air). Impeccable on its Eco credentials (no CFC’s here).

  • DELIVERS up to 3m3 of fresh filtered air each second*
  • INVERTER motor runs at just 3.75A to lower running costs by up to 33% †
  • Maxima unit runs at less than 0.8kW thanks to 0.715kW motor
  • OPERATES at temperatures as low as 20 degrees
  • PRECISE comfort control with 100% variable speed control QUIET operation for lower noise intrusion
  • PERFORMANCE tested at BSRIA for proven results*
 evaporative cooler Cool Breeze QAD230

Cool Breeze QAD230 uses water not CFC’s

Key Features

  • pre-start wash of pads
  • direct axial flow fan system
  • pre-start wash of pads
  • after use auto rinse cycle
  • end of cycle drain
  • adjustable water change
  • gravity drain valve
  • exhaust mode
  • 11 litre sump
  • durable polymer construction
  • powerflow fan
  • magna-sensor auto water level
  • water management system



Simple Technology at it’s Most Effective


Evap cooling motor and fan inside a CoolBreeze QAD230 evaporative cooler

Manufactured by Techno Australia. The motor features quality Japanese bearings with ultra high temperature grease with a protected bearing life in excess of 30,000 hours..

The overall motor service life is projected to be in excess of 10 years, based on average annual usage. Mounting the motor after the fan blade ensures the highest air velocity over the motor. This maximises cooling and prevents moisture.
evaporative cooler fan for a cool breeze QAD230

The QAD230 features a unique powerflow fan with “golf ball” dimpled blades which increases fan efficiency and air flow..

At typical velocities of 1.7m/sec, the pressure drop through the Cool Breeze cellulose pads is 20Pa.
The QAD230 is the only evaporative cooler available in the UK with published BRIA test results. The fan curve shows a flat rate of 0Pa with all pads in place.
evaporative cooling works by running water over cellulose pads

The QAD230 utilises a long-life, self supporting cellulose pad, impregnated with anti-rot salts, ridgifying saturates and wetting agents, with unique alternating, transverse flutes at different angles. The design creates highly turbulent mixing between cooling water and air, enhancing evaporative efficiency and thus cooling results.

Additionally the pads filter out particles as small as 10 microns, including most common allergens. Tests conducted by US Air Filter Test Laboratories in accordance with ASHRAE Standard 52-76 (dust spot efficiency test) found the largest percentage of upstream particles were less than 0.5 microns in size.

Evaporative cooling unit water management technical illustration

Electronic regulation of water level by measurement of ‘magnetic hall effect’ gives a consistent water level accurate to within 1mm.  No adjustment required, no rubber washers to wear or probes to corrode..

The computer controlled water management system with patented Magna Sensor drain valve is vastly superior in performance, reliability and maintenance-free long life. It uses the simple counterweight principle of a tank of water and leverage to open and close the valve. There is virtually nothing to break or wear. The Magna Sensor valve uses a magnetic field principle to determine water level. It never needs adjusting. No Magna Sensor installed by Cool Breeze has ever failed.
Evap Cooler construction

The QAD230 housing, internal mouldings and sump are made from advanced BSF Luran-S Polymer material which is super strong, impact resistant, UV stable and totally corrosion free.

QAD230 evaporative cooling system control

The Cool Breeze control system gives industry-leading system management.

Features of the new controller include:

  • operator friendly
  • fault diagnosis (water, pump etc)
  • optional remote shutdown via BMS
  • optional remote shutdown via timer
  • optional humidity control

evaporative cooler BMS system control


The latest optional upgrade is the BMS CONTROLplus system


      • Monitor room temperature and humidity
      • Pres-set high and low limits
      • Alarm to flag exceeded limits
      • Automatic switch on for a standby system if required
      • Text messages with status information to mobile phone
      • Feeds to connect to Building Management Software or Internet

energy saving evaporative cooling brochure Cool Breeze QAD 230 BSRIA tested

download pdf


QAD230 Specifications and BSRIA Test Results  |  Installations Gallery


Evaporative cooling BSRIA independent tests QAD 230 a leading evap cooler unit

Let the independent tests do the talking… The Cool Breeze QAD230 simply performs better when it comes to evaporative cooling and we’re proud to publish the results of independent research

click picture to enlarge

Impressive stats, but more importantly they are backed up by BSRIA testing

Impressive stats, but more importantly they are backed up by BSRIA testing  click picture to enlarge

evaporative cooler plenumevap cooler in factoryevap cooler in factory

Roof mounted units

Chesapeake factory evaporative cooling

Wall and window mounting

Clean Air engineers are fully trained to comply with the latest 'Working at Heights' Legislation

Clean Air engineers are fully trained to comply with the latest ‘Working at Heights’ Legislation


“Clean Air’s evaporative coolers have made the environment in our factory considerably more comfortable to work in providing cool air at a considerably lower energy cost with less environmental impact than air conditioning.”

Sam Jordan | Projects and Environmental Manager | European Oat Miller Ltd, April 2017

QAD230 Specifications and BSRIA Test Results  |  Setting the Benchmark to Beat


Evap Cooling

maxima evaporative cooling air con



How does Evap Cooling Work?  Watch this Video

See how evaporative air conditioners operate, and why they are the natural way to cool and ventilate your premises.

What output does your Evap Cooling need to be?

To establish this you will need to know what the likely heat gain is in the space you wish to cool.

We have created a heat gain calculator for a simple and quick indication of what your heat load might be. It assumes a reasonable level of insulation to walls, roof or ceiling.  It does not replace the need for expert advise by an HVAC design engineer and a far more complex calculation of  heat loads.


* Fan performance 10,781 m3/hr (100% fan speed corrected for standard 20°C temp and 1013mbar pressure) tested BSRIA, 6 June 2019  
† CoolBreeze QMD230 compared with CoolBreeze QAD230 
Pictures and graph for illustration purposes only. Specifications subject to change without notice. Always refer to your quotation for specific details of products.