Story highlights Chinese artist turns pollutants sucked from air into brick

He was offered $1,600 for the brick but declined to sell it

Beijing (CNN) A Chinese performance artist's latest project has gone viral on social media, after he transformed the air pollution that regularly shrouds Beijing into a brick.

The artist calls himself Brother Nut, and he says he spent 100 days this year walking around the Chinese capital with a large, industrial-sized vacuum trailing behind him. He declined to give CNN his real name.

With the wand held high, he vacuumed the air, sucking up the dust and microscopic particles that make up air pollution.

He did it to make a point about China's air quality.

"Some people think it's ridiculous to vacuum dust in the air," he says.

Read More