This monitor shows both ‘particle count’ and ‘particulate mass’ (PM), giving a fuller picture of air quality than standard monitors. PM readings show the total weight of particles but can overlook ultrafine particles that are small enough to enter the lungs and bloodstream. Particle count highlights how many particles are present, even when mass appears low.
If PM2.5 looks clean, but particle count is high, the air may still contain millions of tiny harmful particles. For everyday use, PM values help with compliance, while particle count is better for spotting trends in real-time changes, indoor sources, and ultrafine pollution.
The particle counter in this monitor is designed for trends, not regulatory compliance like PM. Like all consumer-grade particle counters, it has a margin of error and is sensitive to factors such as humidity and airflow. Its purpose is simple: to show relative change. When you cook, ventilate, open a window, or run an air purifier, you’ll see particle levels shift in real time.
It is useful to identify spikes in sub-micron particles when PM values are low.
