Together with his childhood friend, Andreas, Hans founded, Birdie, which is an alternative indoor air quality monitor. In 30 days they raised $500.000 on Kickstarter and sold the product to customers in 68 countries. Since then, Birdie has won +10 international design- and innovation awards, received VC-investment, been featured in +100 articles and can be found on the shelves at retailers such as Louisiana Museum of Modern Art, Trapholt and Arken.

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