On the morning of June 7, 2023, New York City woke to a sky of orange haze as the smoke from Canadian wildfires blew in from hundreds of miles away. It was a health hazard - city authorities said the air quality had not been as bad since the 1960s. That day, Chad Dickerson, a former CEO of Etsy, put...
Quote: " It's "designed to be as energy efficient as possible, typically with top-notch insulation and a perfect seal that prevents outside air from penetrating the home"
Yes, there are devices that allow one to exchange air, while scavenging heat, so there is very little loss. Couple that with decent air filtration HEPA, etc, and you can maintain your indoor air quality.
Passive House has a minimum ventilation rate of 0.3 ACH, but minimum code requirements can also come into play. Ventilation for health and hygiene is very much a consideration of the standard.