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Veli-Jussi Jalkanen,
Sitting Health Expert

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23.11.2016

About the indoor air quality at night

The biggest problem about the indoor air quality is the large amount of small particles it contains.

If the room does not have an effective ventilation system or the window is not at all open at night, the air is sure to be of inferior quality already before midnight. A furry pet in the room or apartment makes the air go bad 2-3 times faster.

Since only a few have an effective mechanical ventilation, it is most reasonable that the sleeper has a warm blanket made of natural fibers, heating is properly on, and the window slightly open, so that the room is fresh all the night and the temperature is 18-20 C degrees. In this temperature the inflammatory irritation of the respiratory tracts is low. Warmer air is often too dry and thus irritates the mucous membranes.

tudies have shown that a sleeper needs 6 l / s fresh air, which is more than 20 m³ per hour. This is more than we need when we are awake, because during sleep the body secretes strongly waste products through the skin and respiration. Therefore, the air in a sleeper’s room smells bad.

In other words, the air contains gaseous poo. Who would like it to breathe that all night?