Shock ventilation is a habit of Swiss housewives which is diametrically opposed to the new "Minergie" standard for green homes, which provides for air exchange

Shock ventilation is a habit of Swiss housewives which is diametrically opposed to the new "Minergie" standard for green homes, which provides for air exchange via a super expensive heat exchanger system which extracts heat from stale air before sending it out. Of course everyone who lives in Minergie homes opens the windows each morning while hanging out the duvets, and/or complains that the enormous windows are too big to open, or don't open at all. It's like all the Minergie engineers were so busy at work they didn't notice what their wives were doing at home. (I assume the original engineering for these hear exchangers was in the 70's when that gendered statement was not controversial!)