new delhi covered in shroud of smog - top air purifiers

The Indian capital is shrouded in smog, the worst India has experienced in nearly 20 years.
Pollution has closed schools and left workers at home, and the government is also considering a plan to reduce traffic.
The president of the Indian Medical Association said that we now call this a pollution epidemic.
He advised people to stay at home, but not everyone followed the advice.
The particulate matter in the air in New Delhi is nearly 30 times that of the WHO guidelines.
The staff took sick leave and ran out of masks at the store.
A survey of 150 companies in Delhi found that five to 10 employees had been ill in the past week.
Shopkeepers reported an increase in sales of masks and air purifiers and are now taking orders to meet demand.
Cars can be on the road to reduce pollution.
The government is considering re-introducing a "strange"
Even "projects that allow private vehicles to hit the road only on alternate days ".
Pollution includes burning smoke from farm residue, fireworks from the recent Diwali celebrations, construction dust and vehicle emissions.