The Munters Air Cleaner (MAC), sold by KJ Klimateknik, is capable of handling and cleaning ventilation air from the pigsty. Cleaning air is otherwise a challenging task, as the exhaust air contains large amounts of greasy dust. The greasy dust will stick to surfaces in the air purifier.
The MAC does not contain filters, but droplet traps that can handle large amounts of dust and can be removed for periodic cleaning. This innovative design can reduce ammonia emissions by up to 89% and was awarded the Agromek Prize in 2012 for its user-friendly cleaning system.