Formaldehyde, commonly found in wood-based furniture, flooring, paints, and cosmetics, is a hazardous indoor pollutant. Even at very low concentrations, it can cause respiratory irritation and is classified as a carcinogenic chemical. To address the challenge of detecting formaldehyde at concentrations as low as tens of ppb, Sensirion has developed the SFA40 – a highly sensitive and selective sensor that accurately distinguishes harmful formaldehyde in the presence of other typically harmless Volatile Organic Compounds (VOCs). The SFA40 is a game changer in formaldehyde sensing, designed for seamless integration into indoor air quality monitoring devices, air purifiers, and air conditioners. Measuring just 10 x 13 x 2.4 mm³, it unlocks new applications where space is limited.
Integration in battery powered devices
The energy-efficient design makes it ideal for battery-powered devices, ensuring extended operational life without compromising performance. Building on the success of the SFA30, the SFA40 maintains an accurate digital, calibrated and compensated output throughout the entire sensor lifetime. The sensor is designed, manufactured, and calibrated in Switzerland to ensure the highest quality standards, eliminating the need for additional calibration by the customer. Sensirion works towards third-party certification of SFA40 to validate the sensor’s accuracy. The SFA40 is set to enter mass production in early 2025
