New Delhi, Jan. 9 -- We used to treat air purifiers like a seasonal buy. Bring one home when the AQI turns ugly, forget about it when the sky looks clear. But indoor air does not follow a winter calendar. Dust keeps settling, pollen keeps sneaking in, cooking smoke lingers, and pet dander builds up quietly. That is why air purifiers are needed all year, even when outside air looks "normal".

So we kept this list simple and honest. Air purifiers are worth keeping on all year, and these are the ones we would pick for our own homes. We looked for models that suit bedrooms without becoming a constant hum, and living rooms without feeling underpowered. The goal is not perfect air, it is air that feels easier to live with every day.

Coway Airm...