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Preparing Your Home for PM2.5 Season — Air Purifiers, Sealing Gaps, Filtered Ventilation and Myths That Don't Help

As the cool season approaches, fine-dust levels in Bangkok and the North typically rise. How to keep indoor air cleaner: choosing and sizing purifiers, sealing a house or condo, ventilating without letting dust in, air-con filters, indoor pollution sources, checking air quality, and what plants can and can't do.