| Message: | Most contaminants aren’t visible to the naked eye, so it’s hard to tell how polluted your indoor air may be.Indoor air pollution is made up of solid and liquid particles that are suspended in your air – or particulate matter. These suspended particles can consist of dust, metals, smoke, liquid droplets, chemicals and pollen. One clue may be what you see on your air-intake vent in your home. Particulate matter can build up and form a greasy dirty film, like in the photo. url:http://www.hzglentree.com |
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