Factors of extract air cleaning in professional kitchens

Achieving a high level of extract air cleanliness plays a major role in reducing cleaning and maintenance costs and increasing fire safety of the premises. Additionally, clean extract air can be utilized with heat recovery ventilation systems.

Differences in used cooking methods and other kitchen devices as well as grease, humidity, and other airborne impurities set great demands for the cleaning of professional kitchen exhaust air. In most cases, relying on a singular cleaning technology is not sufficient for attaining a high enough filtration rate. This highlights the need for solutions that combine several complementary cleaning technologies, each contributing to a different aspect of air cleaning.

Mechanical filtration / impact filtration

Mechanical filtration efficiently filters out large grease particles resulting in the cooking process. The heavy particles are sieved out of the extract air that travels through an impact or a cyclonic filter. This is a widely used method in the kitchen hoods. However, it is inefficient against smaller grease particles.


UV-C is a commonly used, conventional “germicidal” cleaning technology. It uses longer wavelength of 254 nm ultraviolet light that actively works against micro-organisms, molds, fungi, and bacteria.

Vacuum UV

For further refining the filtration rate of professional kitchen ventilation, a shorter wavelength ultraviolet light can be used. Vacuum UV is highly efficient in dissolving small grease particles into natural compounds, such as oxygen, carbon-dioxide, and water.

In addition, vacuum UV provides a significantly high UV intensity. It has proven to be the only way to keep the extract air ducts clean. The dissolving rate is identical to water cleaning system.


The combination of mechanical filtration and two different wavelengths of UV light yields high results. The overall filtration rate can be enhanced using ozone. Ozone is naturally produced in the photochemical reaction, where ozone effectively dissolves whatever is left of the grease particles and deodorizes air in the ducts.

CleanMaster combines all four cleaning techniques

Climecon was among the first manufacturers to provide safe and efficient UV cleaning technology for professional kitchen conditions. Safety is our top priority, and CleanMaster solutions are equipped with two-fold safety-mechanics. Our hood and ceiling ventilation solutions are praised for their long-lasting impact. And this is why, after two decades, CleanMaster continues as the choice of kitchen professionals.

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What is often asked about environmental product declarations?

The environmental statement or EPD provides a clear summary of the product’s life cycle assessment. EPD information is presented in a standardized way, which makes it easier to compare different products. Use the guidance below to ensure you are reading the EPD correctly.

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LINE valves come first in the European Product Design Award competition

Our contribution to Nordic design has been recognized globally since LINE valves received a gold medal for the best HVAC product in the design competition. The European Product Design Award™ rewards international product and industrial designers. The competition’s international jury evaluates the design based on innovation, aesthetics, functionality, durability, and usefulness.

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The final sprint of the Ocean Globe race begins

The Spirit of Helsinki boat sailed the third leg of the Ocean Globe Race from Auckland in New Zealand to Punta del Este in South America. The crew landed in Uruguay on Friday a week ago. The boat arrived at the stage harbour in second place after a tough race, as the French boat Pen Duick VI arrived already on Wednesday. The race’s third leg was the most challenging but a fantastic experience for many crew members. After participating, we received 12 new Finnish Southern Sea sailors and Cape Horn circumnavigators, including our CEO, Tommi Uksila. Climecon congratulates!

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