Why does contaminated air pose a greater risk specifically in winter?

Pick an answer

1. Moisture that would otherwise just sit in the system can freeze solid and block valves or lines completely
2. Cold weather actually removes moisture from the air system on its own
3. Air brakes are not used at all in freezing temperatures, so contamination isn't a winter issue at all
4. Winter has no particular effect on contaminated air compared to any other season

Correct!

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