1.   ...a big air duct in the ceiling.

2.   Also incense, whose fumes, like cigarette smoke, can waft through air ducts and annoy many people.

3.   Also, if you have hot-air heat, be sure to insulate the air ducts in the basement as well.

4.   Aluminum air ducts and steel beams will frame a huge video wall.

5.   As they departed, the astronauts disassembled portable air ducts, and removed fans and other equipment that delivered and recirculated air fed by the shuttle.

6.   Before leaving the basement inspect the air ducts, pipes and electrical wires.

7.   A boiler ripped from the building, electric wiring, pipes, air ducts.

8.   Crews inspected the second floor air ducts and set and set up air monitors.

9.   First Deputy Fire Commissioner William Feehan said workmen were soldering copper flashing around air ducts on a flat portion of the roof near the front when some saw smoke.

10.   For example, all the air ducts will be treated with the antimicrobial compound, which will cut down on the dust.