AQ Sense

  Common Gases Monitored in Indoor Air Quality (IAQ) Carbon Dioxide (CO₂)   High levels can indicate poor ventilation and cause drowsiness 400–1,000 ppm (normal) 1,000–1,500 ppm (stuffy air, poor ventilation) Human breathing, cooking, burning candles, poor ventilation Carbon Monoxide (CO)   A toxic gas that can lead to poisoning if present in high concentrations.   0–5 ppm (normal), 5–15 ppm (near stoves, fireplaces)  Gas stoves, fireplaces, furnaces, water heaters, tobacco smoke, car exhaust (if garage is attached) V olatile Organic Compounds (VOCs)   Emitted from paints, cleaning supplies, furniture, and other household products, they can cause headaches and long-term health issues.  50–300 ppb (typical home)  Paints, varnishes, air fresheners, cleaning products, furniture, carpets, adhesives, personal care products Formaldehyde (HCHO)    A specific VOC found in building materials and furniture that can irritat...

 Why measuring gas + temperature + humidity is important in gas sensing industry? In industries where gas detection is critical—such as environmental monitoring, industrial safety, and healthcare—accurate measurements are crucial. However, gas concentrations alone do not provide the full picture. Humidity and temperature have significant impacts on gas sensor performance and reliability. That is why modern gas sensors must measure these parameters simultaneously. This blog explores the importance of integrating humidity and temperature measurements into gas sensors and how it improves accuracy, longevity, and overall effectiveness. 1. The Influence of Humidity on Gas Sensor Accuracy Humidity, or the amount of water vapor in the air, plays a critical role in gas detection. Many gases react with moisture, altering their properties and affecting sensor readings. For example: Electrochemical Sensors: These sensors, commonly used for detecting toxic gases like carbon monoxide (CO) and ...