"The critical water content of sodium chloride (NaCl) is 0.5 percent at 74 percent relative humidity, which is the flow moisture point at which salt begins readily to absorb water vapor, and ...

When water vapor in your home or vehicle comes ... but the principles are pretty much the same. That's where the bowl of salt comes into play. During colder months, people are advised to place ...

By placing bowls of regular table salt near the affected areas ... When moist air touches a cold surface, like a window, the water vapour in the air turns into liquid water droplets.