| A backdraft allows cold air and odours to flow down the chimney, through the appliance and into the room. |
| Use a hinged damper weather hood to prevent backdraft and place it at least 12 inches off the ground. |
| He leapt over the side and grabbed his hat just as a gust of backdraft from the airship started to send it flying away. |
| He won the race after the lead Plymouth spun out temporarily when it lost its rear window to the suction of the backdraft. |
| Dust suppressants work by binding fine particles to larger particles that cannot be swept up in the backdraft of passing vehicles. |
| Some of his serving yesterday was so furious, and flew by with such force, it had his opponent looking nervously behind him for the backdraft. |
