During wildfires, it is generally recommended to keep your windows and doors closed to prevent the entry of smoke and ash into your home. In terms of your air conditioner, the decision to keep it on or off depends on the type of air conditioning system you have and the air quality inside your home.
If your air conditioner has a fresh air intake or if it draws air from the outside, it is advisable to turn it off during periods of heavy smoke to prevent the entry of outdoor pollutants into your home. This is especially important if you live in an area affected by wildfires and the air quality is poor. In such cases, keeping your windows closed and relying on air purifiers, if available, can help improve indoor air quality.
On the other hand, if your air conditioner operates solely within a closed system, recirculating the indoor air, it may be more beneficial to keep it running during wildfires. Air conditioners with good filtration systems can help remove particulate matter and improve indoor air quality. However, it's important to note that the effectiveness of air conditioners in filtering smoke particles can vary depending on the type and quality of the filters used.
Ultimately, the decision to leave your air conditioner on or off during wildfires should consider the specific circumstances, the air quality in your area, and the capabilities of your air conditioning system. Monitoring local air quality advisories and following the recommendations of relevant authorities can provide you with more specific guidance tailored to your location.