With the aim to combat indoor air pollution, cinema exhibition company PVR Ltd are all set to roll out its “clean air theatreâ€_x009d_ concept by launching the “Audit-Air-Iumâ€_x009d_ theatre. The company will revamp and retrofit the central air purification systems powered by Nirvana Being to combat indoor air-pollution. PVR ‘Audit-Air-Iums’ will be installed across Delhi NCR, Mumbai, Bengaluru and Hyderabad.