Al Jazeera: New York City’s new air purifiers are making it a cleaner city

New York’s air quality is getting better, but the new air filters are making the city’s air cleaner, according to a new report.

A team of researchers from the University of Illinois at Chicago’s Biomedical Engineering Department found that the filters made New York streets, cars and office buildings look greener.

They say the new filters were developed by the city using existing air purifying technology.

Al Jazeera’s Anna Maria Stern reports.