From filter factory to worldwide market leader: MANN+HUMMEL has been making filtration history for 75 years. Around 16,000 employees in over 60 locations on five continents work every day on this success story. We want to celebrate with our colleagues so we have been baking delicious birthday cakes worldwide. And they are just as individual as our staff and locations. Take a look for yourself in the MANN+HUMMEL Anniversary Gallery: