India, Nov. 10 -- Delhi residents are using "air purifying" indoor plants to supplement the air purifiers already in use as the air quality in the national capital dips to 'hazardous' levels.

The "air-purifying" indoor plants are experiencing a surge in demand, and nurseries across the city report that customers are increasingly turning to these plants to improve indoor air quality.

"Earlier, we used to sell around 50 to 60 such plants daily, but as the pollution season nears, the sales double as we sell more than 100 air purifying plants every day," an owner of a plant nursery in Delhi's Connaught Place told news agency PTI.

The most sought-after varieties include Snake Plant, Peace Lily, Areca Palm, Money Plant, Spider Plant, Aglaone...