Coleman said that part of the system is similar to spam filters used by Google and other e-mail providers.
In California, the Department of Toxic Substance Control brought charges against a geothermal plant for improper disposal of cartridge filters used to remove inorganic solids from the return water.
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On the other hand, those creatures might just be too small to be caught easily by the filters used to winnow life from water for analysis in the first place.
Vacuuming tends to stir up allergens without necessarily removing them, and can actually increase the number of airborne allergens, even when newer vacuums containing HEPA filters are used.
The filters have been used effectively outside the U.S. for a long time, according to Dr. Lim.
The filters can also be used again and again until they are saturated with arsenic.
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Of the 12 available filters, 10 can also be used for shooting movies.
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Share can be used to apply Art Filters or link to social networking apps to share photos and communicate through images.
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Glue is used in shoes, cigarette filters and mobile phones, in labelling bottles and binding books.
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Once they are used widely enough, he hopes that projects will be set up to enable communities to run the filters themselves.
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