Q: How long can I expect my PurpleAir sensor to last?

A: Much like the cartridge on a printer, a sensor’s laser counters have a lifespan and may need to be replaced in time. The life expectancy of a sensor is roughly two years, although some run much longer than that. If you need replacement laser counters, email us for an order. contact@purpleair.com

Learn More

Learn more about looking at sensor performance.
Learn more about calibrating sensors.
Learn more about how we measure air quality.