See the examples of ventilation purpose and usage bellow.
CONTROLLED INLET AND OUTLET OF THE AIR
Thermal insulation of buildings, replacement of untight window and new building materials - it results in controlled ventilation.
At first it is about human health and living comfort rather than fulfilling legislation.
Both goals can be insured by means of controlled inlet (filtered and thermally conditioned) and controlled outlet too.
In apartments, family houses, we focus on rooms such as bathroom, WC and kitchen. In commercial buildings, we focus on complete space.
Approximate values for amount of ventilated air (m3 volume of space per hour)
Appartments
0,3x
Office space
3-5x
Restaurants
8-10x
Kitchen
20-25x
Bathrooms
1x
WC
1x
These values are approximate, for precise calculation, all the factors mentined above must be considered, the character of the space and kinds of thermal gains.
Controlled ventilation insures working only at an appropriate time.