VYSN 9-in-1 Air Quality Monitor — CO2, PM2.5 & Formaldehyde Detector

Know exactly what you're breathing. The VYSN 9-in-1 Air Quality Monitor tracks nine air metrics in real time on a bright 5.7" HD display — so you can tell at a glance whether the air around you is clean or needs attention.

Monitors 9 key readings: CO₂, AQI, PM1.0, PM2.5, PM10, TVOC, formaldehyde (HCHO), humidity, and temperature.

• Real-time readings. Resamples every 1.5 seconds with a color-coded health index, plus an audible alarm when CO₂ rises above 1000 ppm.
• Lab-grade accuracy. Combines semiconductor, laser-scattering, and infrared (NDIR) sensors with smart algorithms for precise, reliable results.
• See everything at once. A 5.7" backlit HD screen shows every reading, the time, and battery level — no switching screens, day or night.
• All-day battery. The rechargeable 3000mAh cell runs up to 9 hours, recharges over USB-C, and auto-shuts off to save power.
• Built to last. Multiple air inlets boost circulation for more accurate sampling, housed in durable ABS.

In the box: air quality monitor and USB-C charging cable.