# Is It Safe to Use Air Conditioner in Smoky Weather? Essential tips for using air conditioners when air quality is poor. - **Source:** [SlashGear](https://www.slashgear.com) - **Published:** 2026-07-19 - **Topic:** [Career Growth](https://brifing.si/c/growth) - **Original article:** - **On Brifing:** https://brifing.si/s/9abee6f0-7236-4caf-bc79-8b9e03f1d5af ## Using Air Conditioner in Smoky Weather Using an air conditioner in smoky weather is possible, but there are important points to consider. Check if your AC has a 'fresh air intake mode' and set it to 'recirculate.' This uses indoor air instead of outdoor air. ## Filter Cleaning and Replacement Ensuring the AC filter is clean and new is crucial. In smoky conditions, replace the filter or upgrade to a MERV 13 or higher-rated filter if possible. This will improve air quality significantly. ## Central Air Conditioning Systems Central air conditioning systems treat all the air in your home. When used with the correct mode and filter, they are completely safe and ideal for maintaining indoor air quality during smoky weather. ## Window AC Units If you’re using a window AC unit, ensure the seal is tight to prevent outdoor air from seeping in. A secure seal can keep smoke from entering your home. ## Portable ACs and Air Purifiers Avoid using portable ACs as they may draw in outdoor air. Instead, invest in an air purifier for each room to significantly improve indoor air quality during smoky conditions. ## Additional Precautions To maintain indoor air quality during smoky weather, keep windows and doors closed, use weather-sealing tape, and avoid smoking or burning candles indoors. These measures will help protect your health. ## Sources covering this story - https://www.slashgear.com/2217925/can-you-run-air-conditioner-when-its-smoky-outside/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._