Dew Point: Vent Check

By Jinwan Kim on AppTrack Ninja.

Humidity calculator and chart

You already have the readings. This tells you what they mean. Type in what your own thermometer and hygrometer say — for this room, and for the air you are thinking of letting in. Nothing here is measured by the phone and nothing is fetched from a weather service. There is no network code in this app at all. Compare rooms by moisture, not percent. Relative humidity moves with temperature even when the water does not. Outside at 5 °C and 90 % holds about half the water of a room at 21 °C and 60 % — so opening the window in winter dries the room, and the percentages say the opposite. Both state…

Categories: Utilities, Weather

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