This was my conclusion as well. Use a good vent fan and crack a window. Unlike many commenters here, most aren't willing to spend $20k to replace their applianc

This was my conclusion as well. Use a good vent fan and crack a window. Unlike many commenters here, most aren't willing to spend $20k to replace their appliances for vague health reasons. For example, natural gas powers my furnace, water heater, stove, and fireplace, as is common in the midwestern US. It would be impractical, not to mention expensive and wasteful to upgrade my electrical system to 200A and replace each appliance. Utility costs would increase too, and I couldn't use my fireplace or range when the power goes out (a battery backup would solve this, for another $2k).