Install a vent hood that exhausts outside. If you can't do that, install an extraction fan in the window or open a window and leave it open for 5 mins before and after you cook. With an extraction fan or vent you probably want to open a window as well when runnig. You could also run exhaust fans in the bathroom which would help.

Austin Air makes standing air purifiers that filter NO2 from gas stoves. Here is their write up about it.

https://austinair.com/is-your-gas-stove-making-your-child-si...

Crack a window while you're cooking.