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The Zehnder Clean Air Solutions story


Learn about Zehnder’s Swedish roots, the history of our founding, and our mission to bring clean air solutions to businesses around the world

20+
Countries
3,000+
Customers worldwide
15,000+
Air cleaning units installed
1 billion+
Liters of air cleaned every hour
2,500+
Air quality measure­ments per year
100+
Employees around the world

The start of our clean air journey

Clean Air Solutions has been part of the Zehnder Group since 2007, but the story began much earlier, in Sweden, with a man named Evert Krantz. This inspired engineer and businessman was so passionate about clean air that in his retirement, he invented an air filtering technology called the Flimmer filter.

Never one to slow down, at the age of 83, Krantz decided to further pursue his passion by founding a company specializing in air cleaning technology. He named his new company Freshman AB, and it quickly grew into a thriving family business, laying the foundations for what is now known as Zehnder Clean Air Solutions.

History of clean air solutions

1998 The birth of a great idea

A church in Stockholm reaches out to the family business, Freshman AB. The building was undergoing refurbishment, and dust from the work was threatening to damage valuable artworks. Freshman built and installed several air filtering units, significantly reducing dust during the renovations. The remarkable results convinced Freshman to focus on businesses that produced large amounts of dust, helping them clean up their air.

1999 Solving the dust problem

One of Freshman AB’s early contracts was with an industrial bakery in Örebro, Sweden. The bakery had a problem: Pastries and other products in its warehouse were getting covered in dust from flour production elsewhere in the factory, and customers were complaining. Freshman designed an air cleaning system for the bakery, considerably reducing dust in the factory and ensuring its consumer products stayed clean. The bakery’s response? “Wow!”

2007 Going global

In 2007, the family business known as Freshman AB became Zehnder Clean Air Solutions. Since then, our business has grown and evolved, but our commitment to our customers and passion for clean air remains. We continue to improve indoor air quality for thousands of businesses around the world.