Home Featured Sculpture Air purifiers put to the test

Air purifiers put to the test



How clean is your home? Even if it looks immaculate, microscopic particles including dust mites, pollen and mould spores, as well as volatile substances emanating from paint, adhesives and other common products, are probably lurking. In fact, air inside homes can have more pollutants and allergens than outdoors, especially in well-sealed modern buildings that trap airborne particles. It’s bad news for asthma and allergy sufferers, but anyone can be affected by poor air quality. Associated with illnesses such as respiratory infection and lung cancer, particles 2.5 micrometres or less in diameter are particularly prone to being inhaled and absorbed.

I tested two air purifiers designed for what the manufactures consider medium-sized rooms: the TruSens Z-2000 (up to 35 square metres) and Philips Series 3000 (up to 95 sq m). Models for “small” and “large” rooms are also available at commensurately lower and higher prices.

Both test models have sleek back-lit touch-control panels, a colour-coded air-quality indicator light, and almost-silent, low-light modes. Triple-filtration systems comprise pre-filters for larger particles, carbon filters that capture harmful gases, smoke and odours, and high-efficiency particulate air (HEPA) filters for tiny particles. Pre-filters are washable while the others are readily replaced according to appliance alerts.


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