The Invisible Pack: Your Guide to the AQI Cigarette Calculator

It’s very straightforward. Use a free app like AirVisual, IQAir, or check the EPA’s AirNow website. Look for the real-time PM2.5 concentration (shown in µg/m³). Many of these apps now include this equivalence in their health recommendation notes. If not, you can use a rough guide: an AQI value (based on PM2.5) of around 22-25 is frequently equated to 1 cigarette per day of continuous outdoor exposure.