Portable air monitor with labgrade accuracy for comprehensive indoor environment assessments, achieved through a multisensor fusion algorithm and interferenceresistant engineering. Advanced detection with precise monitoring of formaldehyde (HCHO) and TVOC levels via electrochemical and semiconductor sensors, plus immediate data logging. Ideal for healthconscious families, homeowners, parents of nurseries, and professionals maintaining office air standards. Key features include SEN calibration technology, temperature compensation, and an LED refresh cycle that presents readings within 5 seconds for stable air analysis. Compact, portable design suitable for onthego use in a variety of spaces. Practical use scenarios In the home: monitor air quality in living rooms and bedrooms, especially after renovations or when there are concerns about formaldehyde or VOC exposure. In nurseries or children's rooms: ensure a safe environment for infants and young children by tracking HCHO and TVOC levels. In office environments: support facilities management in maintaining indoor air quality standards and occupant health.