BC 221 – evaporative cooler
Cool your factory, hangar or workshop for less. Our portable evaporative coolers offer a cost-effective alternative to traditional air-conditioning and create a comfortable working environment for your employees or customers.
Efficient and durable spot cooler for industrial applications
Quiet running even with large air-flow
Automatic swing function as standard
Large water tank for longer operating hours
Large, durable wheels with brakes allow easy movement
Connect water hose or refill tank manually to offer comfort to your employees
Corrosion-resistant plastic casing
Air filter included to enable easy maintenance
Remote control to easily adjust speed
UV lamp, disinfecting the water
Benefits of evaporative cooling
The use of Master air coolers strongly reduces the CO₂ impact compared to air-conditioners
Clean air that reduces the risk of bacteria and virus
No chemicals or refrigerants
Low energy consumption
Virtually maintenance-free equipment
How does it work
The heart of the evaporative cooling system is the cooling pad where the water evaporates and the air passing through the pads is cooled. Evaporative cooling pads are manufactured from fluted cellulose sheets that are glued together. The material is chemically impregnated with special compounds to prevent rot and ensure a long service life and easy maintenance.
Evaporative cooling and humidity
A given volume of air at a certain temperature and pressure is capable of absorbing and holding a certain amount of water vapour. If that volume of air contains 50% of the moisture it is capable of holding, we say it is at 50% relative humidity.
The hotter the day, the drier the air, the more cooling can be done by means of evaporation. In other words, the cooling effect is best when you need it most.
Our evaporative coolers are developed to work well in high-humidity environments too, however, and will remain much more efficient than a simple fan that just circulates warm air.
Our coolers will increase humidity by 2 to 5%, depending on temperature and humidity in the environment you want to cool. The slight increase is not noticeable in ventilated areas where the air produced by the unit is exhausted.
Loaded air flow
Direct water connection
Tank level control
Product size (l x w x h)
Box size (l x w x h)
Portable air coolers
Green and cost-effective cooling unit with integrated UV light. Ideal for open and semi-open spaces of up to 400m².
Portable air coolers
Green and cost-effective cooling unit with integrated UV light. Ideal for open and semi-open spaces of up to 150m².
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