1.   Foods spoil more rapidly if the refrigerator or freezer is packed so full that air flow is compromised.

2.   It also causes less condensation than double glazing thanks to improved air flow.

3.   Only a small amount of sand is sucked up if the air flow is kept low.

4.   The soffit vents provide cooling air at the eaves, the ridge vent allows the air flow constantly.

5.   There are many sleep disorders, but the most prevalent is sleep apnea, involving brief interruptions of air flow.

6.   On the ground the top and bottom parts of the lung have different patterns of air flow and blood flow.

7.   Even in the absence of gravity, different parts of the lung have different levels of air flow and blood flow.

8.   Among the possible solutions to be highlighted is a tiny fan that its inventors say provides air flow with minimal power consumption and almost no noise.

9.   An unusually persistent air flow from the south has been pushing the surface waters of Lake Ontario toward the northern shores.

10.   And in stopping that air flow, it also stops loss of heat, or at least reduces it substantially.