Do not!

The natural ventilation exhaust channels must not be closed or fans not working 24 h a day must not be installed in front of them, as there is no air exhaust at the time, when the fan does not work and ventilation in the housing does not function.
The same applies to natural ventilation exhaust channels in the kitchen.
Apartments in multi-apartments, where gas cookers and heating equipment are used, should not interfere with the natural ventilation system.
Any intervention in main structures of the building, such as reconstruction of natural ventilation without coordination or connection of a stove hood to the exhaust channel in the kitchen, is not allowed and should be regarded as arbitrary construction.