At least 240 of the 300 planned BEST buses with Hepa filters are now out on the street, with 100 of them launched on Wednesday. With the rising AQI, the BEST undertaking had planned to induct 300 such buses. The filters cut down the concentration of particulate matter.

On Wednesday, Mumbai’s Guardian Minister Deepak Kesarkar launched 100 buses mounted with air purification systems in BEST buses. These buses will be plying through congested areas in Marol (Andheri), Kurla, Bandra, Anik/Wadala, Colaba depot among other areas. The first one to get such a filter was a bus at Anik Depot last year.