The Blueair Blue Signature is a near-perfect air purifier: quiet, beautifully designed and effective at removing odors and ...
We develop a framework to estimate willingness to pay (WTP) for clean air from defensive investment. Applying this framework to product-by-store level scanner data on air purifier sales in China, we ...
Air purifiers under ₹30,000 make sense across India as AQI stays very poor, with the north hit harder. In real homes that means itchy eyes, morning coughs, and dust settling faster. A HEPA (H13) unit ...
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