Are fresh air supply systems compulsory in apartment buildings?
Published the 18 February 2008 | Regulation
Fresh air supply systems are not compulsory in all cases, but must be installed if the ground floor area where the stairway comes out is not "well ventilated" |
| Fresh air supply systems are not compulsory in all cases, but must be installed if the ground floor area where the stairway comes out is not "well ventilated" |
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