Tegemist on spetsiaalselt (mingis kindlas olukorras) rakendatud müraisolatsiooniga, sisuliselt on see tugevdatud müraisolatsioon, kuigi see ei vasta täpselt tekstile (direktiivis mõeldakse selle all tugevdatud heliisolatsiooniga aknaid).
In addition it should be stated, where appropriate and where such information is available, how many persons in the above categories live in dwellings that have: ? special insulation against the noise in question, meaning special insulation of a building against one or more types of environmental noise, combined with such ventilation or air conditioning facilities that high values of insulation against environmental noise can be maintained...
