- Breathe Easy with Accurate Air Quality Monitoring The HARMNHLT Indoor Air Quality Monitor ensures you breathe clean air by providing real-time monitoring of PM2.5, PM10, CO2, HCHO, TVOC, temperature, and humidity. Its ultra-high-definition color screen makes it easy to read and understand your indoor air quality. - Superior Accuracy & Quick Data Refresh Featuring a responsive high-performance chip and advanced infrared (NDIR) sensor technology, this monitor delivers precise readings of CO2, PM2.5, and PM10. The HCHO and TVOC levels are measured with an electrochemical sensor. Enjoy updated readings every 1-2 seconds, ensuring you have the most current information for assessing air quality. - Long Battery Life for Continuous Use With a built-in 800mAh battery and included USB charging cable, the device operates continuously for up to 6 hours on a full charge. It is designed for low power consumption, enabling long-term air quality monitoring for your safety and well-being. - Versatile and Portable Design Its compact and aesthetically pleasing design makes the HARMNHLT monitor ideal for various settings, including bedrooms, living rooms, kitchens, offices, cars, schools, hotels, and restaurants. The device uses a TYPE-C USB interface for convenient connectivity. - Important Usage Guidelines Note that this monitor is intended for indoor use; close doors and windows before testing for the most accurate results. For optimal performance, allow the device to operate for at least 60 minutes before taking readings. - Practical Applications 1. Use it in your home to monitor air quality, ensuring a safe environment for your family. 2. Ideal for offices to maintain healthy workspaces, boosting productivity and comfort. 3. Perfect for schools and restaurants, helping to provide a safe atmosphere for students and customers alike.