My wife and I have allergies and are poor sleepers, as a result I religiously monitor air quality in several points in the home in order to manage the air. I

My wife and I have allergies and are poor sleepers, as a result I religiously monitor air quality in several points in the home in order to manage the air. I find CO2 ppm over 1000 provides for headaches and poor sleep. Having a modern well sealed home means you rely a lot on an HRV to exchange the air, but sometimes you need to open the windows. After all the monitoring for years I can attest that the gas cooktop has a massive influence on poor air quality. The vent hood helps, but does not eliminate CO2. Keeping CO2 under ~700ppm in occupied bedrooms takes some work. For my next house that I'm building now I've put in induction, will never do gas again. Also supersized the vent hood and HVAC systems. Indoor air quality is such an unappreciated topic in home construction.