airtightness, indoor/outdoor

[EN 13141-4:2021, 3.13]:maximum of air volume flow through a non-ducted ventilation unit at static pressure difference of − 20 Pa and + 20 Pa corresponding to the setting when the fans are “OFF” and all additional shutters are closed.Note 1 Continue reading →

apartment

[AIVC, Air infiltration and ventilation glossary, 1992]:a separate room or suite of rooms in a building occupied by one party. Many of these apartments form apartment blocks, or blocks of flats.

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