Thanks for resharing this because unlike with Covid, opening windows during wildfires worsens indoor air quality. Even the EPA's website for wildfire smoke says: "If portable air cleaners are not available or affordable for you, you may choose to use a do-it-yourself (DIY) air cleaner."
Citizen.CopingTo Reduce Exposure to Smoke Indoors: - Keep windows and doors closed - Use fans and air conditioning to stay cool. - Use a portable air cleaner or high-efficiency filter - Avoid creating more fine particles indoors - Avoid strenuous activity - Create a clean room - Have a supply of N95 respirators