The heart of the BuildClean system is a 38-pound unit, which acts as an environmental air filter to pull airborne particulates out of a work space. It must be used in concert with a plastic barrier to isolate the workspace from the living space. You wan to maintain negative air pressure in the workspace to keep dust-laden air from migrating into the living space The unit pulls air through a circular prefilter, then through a HEPA filter, before it exhausts the filtered air through a 6-in.-dia. flexible duct out a window or door.

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