Master BC 221 Portable Air Conditioner

Cool your factory, hangar or workshop for less. These portable evaporative coolers offer a cost-effective alternative to traditional air-conditioning and create a comfortable working environment for your employees or customers.

This powerful machine provides an airflow of 22,000m3/h, which can cool areas of up to 250m² with ease. The automatic swing function creates excellent coverage and circulation, allowing you to cool the entire space quickly.

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.