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A25 Series PM2.5 Meters

A25M (handheld)/A25D (benchtop)/A25F (benchtop) are air quality meters used to measure PM2.5 concentration. A25F can also measure Formaldehyde concentration. PM2.5/Formaldehyde concentrations are used to display different emoticons on screen to help users visualize their environmental conditions. A25 series can be used in homes, laboratories, offices, hotels, schools, factories, conference rooms, airports, hospitals, restaurants, and many other public places.