I want toilets to have better fans. Specifically, we need a fan that runs while the light is on in the toilet and for 5 mins afterwards and can do perhaps 1 fu

I want toilets to have better fans. Specifically, we need a fan that runs while the light is on in the toilet and for 5 mins afterwards and can do perhaps 1 full air change per minute (that's a lot of air moving, but toilets tend to be small). And that air should go outdoors (maybe via a heat exchanger and filter)