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Smog Free Tower

World’s first smog vacuum cleaner which creates clean air parks.

SMOG FREE PROJECT is a campaign for clean air led by Daan Roosegaarde to reduce air pollution and provide an inspirational experience of a clean future. The project includes a series of urban innovations, such as, the SMOG FREE TOWER which provides a local solution of clean air in public spaces. It is combined with workshops with governments, students and the clean-tech industry to work together and make a whole city smog free. SMOG FREE PROJECT campaigns launched in South Korea, China, the Netherlands, Mexico, and Poland.

Daan Roosegaarde: “We are on a mission for clean air”.

Winner of the Successful Design Award China, Ethics Ethical Award, Grand Award for Sustainability, BUILD Architecture Awards 2020, Europe 40 Under 40 Awards, Design That Educates Award, Gold Award Design For Asia, Platinum A’Design Award, and German Design Award Excellent Product Design.

Smog Free Tower

The SMOG FREE PROJECT is a long term campaign for clean air in which Daan Roosegaarde and his team of experts have created the world’s first smog vacuum cleaner. The 7-meter tall SMOG FREE TOWER uses patented positive ionisation technology to produce smog free air in public spaces, allowing people to breathe and experience clean air for free. It is equipped with environment-friendly technology, cleans 30,000 m3 per hour and uses a small amount of green electricity. The SMOG FREE TOWER provides a local solution for clean air such as in parks. The function of the SMOG FREE TOWER has been validated by results compiled by the Eindhoven University of Technology.

SMOG EATING BILLBOARD was launched at UDEM University in Mexico by students in collaboration with visiting professor Daan Roosegaarde. It provides clean air for 104,000 people every day. Professor: Daan Roosegaarde, assistant professor: Ricardo Contreras Marcos, students: Ana Cecilia Álvarez Moreno, Frida Leal Parra, Karen Savinneh Tellez Castillo, Ana María Peñúñuri García.

Daan Roosegaarde: “True beauty is not a fashionable bag or a Ferrari, but clean air and clean energy.”

Roosegaarde designed the SMOG FREE RING of compressed smog particles as a tangible souvenir. By sharing a SMOG FREE RING you donate 1000 m3 of clean air to the city. SMOG FREE RING is in the permanent art collection of the National Museum Zurich and Stedelijk Amsterdam. The latest addition to the project is SMOG FREE BICYCLE. An innovative bicycle that inhales polluted air, cleans it, and releases clean air around the cyclist.

Clients such as green companies or cities can commission a SMOG FREE PROJECT campaign which includes a SMOG FREE TOWER, SMOG FREE RINGS, project management and innovation workshops.

Want to support the project? Make a donation to our foundation Stichting Roosegaarde at NL05 INGB 0006 5678 97, SWIFT code INGBNL2A.


SMOG FREE TOWER is a 7 meter tall aluminium tower using only 1170 watts of green electricity and positive ionisation technology. The functioning of the SMOG FREE TOWER has been validated by professor Dr. Bert Blocken of the Eindhoven University of Technology and is successfully implemented in South Korea, China, the Netherlands and Poland. The SMOG FREE TOWER is created by Daan Roosegaarde in collaboration with the engineers and designers of Studio Roosegaarde, ENS and till 2013 advisor Ursem. The SMOG FREE RING is designed by Studio Roosegaarde. The SMOG FREE BICYCLE draws its inspiration from the Smog Free workshop in Beijing which featured artist Matt Hope and Professor Yang from Tsinghua University. The SMOG EATING BILLBOARD by UDEM University in Mexico consists of a coated surface that attracts and purifies the particles of contamination by a process called photocatalysis using sun and wind, and provides clean air for 104.000 people each day.