Deutz, founded in 1864 in Cologne, Germany, is currently the oldest and world-leading independent engine manufacturer. Deutz has 9 distribution companies, 9 sales offices, 16 service centers and more than 800 sales and service partners in more than 130 countries around the world to support customers.

IQAir customized a piped overall air purification plan for its Shanghai branch building, which effectively mitigated the level of particulate matter pollution, promptly calmed the complaints of employees entering the newly renovated office, and greatly increased employee satisfaction.