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At best, roughly 500m away and in a downwind direction, there was an 18% improvement in the amount of dust and ultrafine PM.
For right air purifier, consider factors such as filter ratings, room size, noise levels. Avoid devices that produce ozone and change filters regularly.
With worsening AQI, Delhiites queue up at nurseries to buy air purifying plants in bulk. Many plant varieties are already sold out at about 16 nurseries in NCR.
Published on Nov 02, 2023 10:52 PM IST
The results, published in the journal Environmental Science & Technology, showed that Corsi-Rosenthal boxes significantly decreased the concentrations of several PFAS and phthalates in 17 rooms during the period they were used (February to March 2022).
Published on Dec 26, 2022 03:36 PM IST
PTI | , Washington