Method and apparatus for ensuring air quality in a building, including method and apparatus for controlling a working device using a handheld unit having scanning, networking, display and input capability

Apparatus for transforming the air exchange load of a higher air exchange rate space into the air exchange load of a lower air exchange rate space, said apparatus comprising:

• a housing for mounting to a surface of the higher air exchange rate space;
• an air inlet formed in said housing;
• at least one air outlet formed in said housing;
• a passageway extending through said housing and connecting said air inlet to said at least one air outlet;
• a circulation fan disposed in said passageway so as to draw the air of the higher air exchange rate space into said air inlet, through said passageway, and return that air to the higher air exchange rate space through said at least one air outlet;
• and
• a filter disposed in said passageway for purging noxious substances from the air passing through said passageway, whereby to transform the air exchange load of a higher air exchange rate space into the air exchange load of a lower air exchange rate space.

A method for handling the air exchange load of a higher air exchange rate space in a building having an air exchange system, said method comprising:

• providing apparatus for transforming the air exchange load of a higher air exchange rate space into the air exchange load of a lower air exchange rate space, said apparatus comprising:
• a housing for mounting to a surface of the higher air exchange rate space;
• an air inlet formed in said housing;
• at least one air outlet formed in said housing;
• a passageway extending through said housing and connecting said air inlet to said at least one air outlet;
• a circulation fan disposed in said passageway so as to draw the air of the higher air exchange rate space into said air inlet, through said passageway, and return that air to the higher air exchange rate space through said at least one air outlet;
• and
• a filter disposed in said passageway for purging noxious substances from the air passing through said passageway;
• positioning said apparatus in the higher air exchange rate space, and operating said apparatus so as to transform the air exchange load of a higher air exchange rate space into the air exchange load of a lower air exchange rate space;
• and
• operating the air exchange system of the building so as to provide a lower air exchange rate to the higher air exchange rate space.