India, Dec. 24 -- An American woman who has been living in India for the past four years has shared how she manages air quality in Delhi during the city's high-pollution months.

Taking to Instagram, Kristen Fischer shared a video addressing a question she says she is asked frequently. "So people ask me how I'm able to manage the air quality here in Delhi," she said, before showing an air quality monitor displaying an AQI reading of 210 outdoors. She then carried the device inside her home, where the reading dropped sharply to 48 within a few seconds.

Explaining the difference, she said, "This is because we have air purifiers in our house." She added that her home has 4 air purifiers running full-time. "They allow our indoor air quality ...