Air Gradient. I bought their DIY kit.

Cheers, Henry.

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Yeah new cars usually have the ability to do that themselves and also usually do it when safe.

They auto start when power is needed or if the situation changes. Eg: touch the steering or gas pedal. Another example is my car will auto start it too many cars are around me.

Shutting your non-auto starting car off and then having an emergency happen could land your ass in trouble with insurance and the law. If you’re on the road, your car should be running (unless it was designed this way). Of course people mentioned wear and tear, so that too.

Cheers -Henry

Honestly it was easier than I expected. I have a fairly new home and it has an HRV. I replaced it’s paper filters with MERV 8. I also picked up an Air Gradient, slick little project.

I change my filters about everything 3 months, they get pretty gnarly. I filter the air on the way out with a basic screen because it passes over the blower and…by design it would get absolutely filthy in short order.

I made a bunch of “sensors” in HA to calculate the indoor AQI, and average.

Cheers.

My Air Quality monitoring. I monitoring CO2, VOCs, PM and such. I then have automations run the air exchanger. They say air inside is 5X more polluted then outside I have the opposite.