News

Abstract The accuracy of PM2.5 sensors depends heavily on the measurement method used. While the beta-ray and micro-oscillating balance methods are well-established and widely accepted, the light scattering method is less commonly used. This is mainly because it is sensitive to environmental factors, which may lead to inaccuracies. This study focuses on the PMS3003 laser sensor, comparing its measurements to those of a benchmark device. The analysis shows a linear correlation between the two, influenced...

Volatile Organic Compounds (VOCs) are a wide range of organic chemicals that are released as gases from certain solids and liquids. These compounds are significant to air quality, especially in indoor spaces where their concentrations are often higher than outdoors. VOCs encompass a broad category of chemicals that originate from everyday products and industrial materials. Due to their prevalence and potential health effects, it is crucial to understand the sources and impact of VOCs, as well as...

Introduction In recent years, air pollution has become an increasingly important concern worldwide, with particulate matter (PM) being one of the primary pollutants. PM2.5 particles, with a diameter of less than 2.5 microns, are particularly harmful to human health as they can penetrate deep into the lungs and enter the bloodstream. As a result, it is essential to monitor and control the concentration of PM2.5, especially in enclosed environments like vehicles. Automotive PM2.5 sensors are innovative...

Ensuring optimal indoor air quality (IAQ) in schools is a key priority for both student health and academic performance. Among the various components of air quality, carbon dioxide (CO2) levels are an important metric to monitor, particularly in enclosed environments like classrooms. Research indicates that high CO2 concentrations can impair cognitive function, reduce attention span, and lead to discomfort or even headaches, all of which hinder learning. Schools are increasingly integrating CO2...

Introduction Formaldehyde (HCHO) is a colorless, flammable, and strong-smelling chemical widely used in building materials and household products. Its presence in indoor environments is concerning, as it can be released into the air over extended periods ranging from 3 to 15 years. Elevated emissions of formaldehyde are commonly associated with higher temperatures and humidity levels, making it a persistent challenge in maintaining healthy indoor air quality. Exposure to formaldehyde can lead to...

Particulate Matter (PM), often referred to as fine dust, is a serious environmental and health concern. Among these particles, PM2.5 stands out as particularly hazardous due to its small size, allowing it to penetrate deep into the lungs and even enter the bloodstream. The smaller the particle, the more toxic and harmful substances it can carry, making it a significant contributor to air pollution, respiratory illnesses, and even cardiovascular diseases. Additionally, PM2.5 particles have the ability...

Total Volatile Organic Compounds (TVOCs) are a group of diverse organic chemicals commonly found in both indoor and outdoor environments. These compounds easily vaporize at room temperature, becoming part of the air we breathe. TVOCs encompass both harmful and harmless substances that can significantly impact indoor air quality. In fact, there may be as many as 10,000 distinct volatile organic compounds in existence. Some of these compounds, such as formaldehyde and benzene, can negatively affect...

Indoor air quality has become a significant concern worldwide, as more people spend an increasing amount of time indoors. Whether at home, in offices, schools, or public spaces, the presence of airborne pollutants, including dust particles, can negatively impact health and comfort. In response to this growing need, Indoor Dust Sensors equipped with advanced laser scattering technology have emerged as powerful tools for monitoring and improving air quality. What is an Indoor Dust Sensor? An Indoor...

Introduction In today’s world, the importance of clean air cannot be overstated. As pollution levels rise, air quality sensors have become an essential tool for monitoring and improving the environment we live in. These sensors are deployed to detect harmful pollutants in the air and provide valuable data to ensure our health and safety. But how exactly do these sensors work, and what technologies do they employ to measure air quality? In this article, we will explore the functioning of air...

Introduction When you move into a newly built or renovated home, it’s common to notice new smells. Some of these odors may be from fresh paint, new carpets, or even newly installed furniture. While these smells can be exciting, they may also be a sign of something more concerning: off-gassing. Understanding off-gassing is crucial for maintaining healthy indoor air quality and ensuring that your living environment is safe and comfortable.   What is Off-Gassing? Off-gassing refers to the...

Abstract: As industrialization progresses, the expansion of heavy-pollution industries such as petroleum, chemicals, power generation, and metallurgy continues. Concurrently, sewage treatment facilities have not met regulatory standards, contributing to worsening air pollution. Traditional PM2.5 detectors are typically bulky, difficult to transport, and less practical. They also have limitations, including high costs, limited real-time performance, and low detection accuracy. This paper proposes...

Air quality is often something we take for granted, but it plays a crucial role in our overall health and well-being. Many people don't realize that the air inside their homes can be up to five times more polluted than the air outside, especially in modern homes that are tightly sealed and lack proper ventilation. This means that indoor air quality can have a significant impact on your health, even if you can't see or smell the pollutants. From dust and mold to chemicals like volatile organic...