The importance of proper design : commissioning and maintenance are highlighted in the proposal for a new Finnish ventilation code. D2-maaraysehdotuksessa korostuu suunnittelun, kaytoonoton ja kunnossapidon merkitys.

The technical chapters in the draft proposal for the Ventilation Code differ from the existing one. The technical means for achieving acceptable indoor climate will be described in a new way. In order to secure acceptable quality also in practise (not only in design), new requirements are suggested for design and especially the documentation of design, for commissioning and for maintenance planning. The suggested minimum ventilation rate is 4 l/s per person in rooms where smoking is not allowed and 10 l/s per person if smoking is allowed.