“NEW DELHI: You may not realise it, but the air inside your house may be much worse than the air outside with CO2 and PM 2.5 levels peaking at night and early morning. A recent study conducted by the Indian Pollution Control Association (IPCA) across 20 households in the capital has revealed that in spite of keeping an air purifier inside the room, you may still be recording extremely high CO2 levels due to poor ventilation, with levels touching 2000 parts per million — twice the safe standard for indoors.” The Times of India
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You’re no longer safe at home: Inside air turns worse even with purifiers on
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