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Master BC 341
Master BC 341

BC 341

Evaporative coolers

Portable air cooling with integrated UV light removes any risk of virus and bacteria disinfection. With its minimal energy consumption, the BC 341 is ideal for cooling of areas up to 400m2 that are unfit for traditional A/C.


Key features

  • Powerful air volume 30,000 m3/h to cool large working areas
  • No installation, no duct work required
  • Low running costs
  • Easy to maintain
  • Evaporative filter pads, blocking dirt
  • UV lamp, disinfecting the water
  • Low energy consumption – 1.3 kW
  • Ideal for workshops and warehouses, plastic, glass, assembly and painting plants, agriculture, greenhouses and aircraft hangars

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.

Product specifications

Cooling pad


Air flow


Loaded air flow


Maximum area


Power consumption


Power supply


Rated current


Water consumption


Tank capacity


Direct water connection


Tank level control


Sound level


Product size (l x w x h)

1690 x 920 x 1910

Box size (l x w x h)

1000 x 1800 x 2100

Net/gross weight




Our tools


Master 3-year limited warranty

Register your Master product here to take advantage of the benefits of the 3-year limited warranty.

Accessories and consumables

Master dust cover 4241 160
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Product code: 4250.416

Accessory for BC 341

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