Air Quality

Air quality


Air pollution has become a growing concern in the past few years. Human activity and natural processes both generate air pollution. Sources of air pollution are e.g. motor vehicles, combustion devices, industry and forest fires. Several cities in the world continuously have pollution problems. As a result, data on air quality is becoming increasingly available.

Emissions of black carbon, ozone, methane and carbon dioxide produce a strong global warming effect and contribute significantly to the more than 7 million premature deaths annually linked to air pollution.

Formaldehyde is a known toxic and carcinogenic chemical even at low concentrations. Formaldehyde occurs in nature and thus is poses a chronic threat to human health. However, formaldehyde levels in man-made products at significantly higher concentrations can result in formaldehyde concentrations in living environment that greatly surpass the levels found in nature. In addition, formaldehyde is a potent ozone precursor thus contributing to an even more severe health risk.


Most people spend approximately 80% to 90% of their time indoors; therefore, indoor air quality has a large impact on health, quality of life and work efficiency. It is widely known that numerous indoor air impurities are responsible for exacerbate respiratory diseases, allergies, intoxication and certain types of cancer (e.g. asbestos, radon, environmental tobacco smoke, combustion products, volatile organic compounds, polycyclic aromatic hydrocarbons biological contaminants, etc.). Particularly vulnerable groups are infants, children and the elderly or people already suffering from, e.g., respiratory or allergic diseases. Indoor air quality monitoring is essential to avoid developing the above mentioned conditions.

Formaldehyde is an important industrial chemical with multiple applications. A well know source of formaldehyde are pressed wood products that are often used in especially residential buildings worldwide. Whereas the concentration of formaldehyde is often in the low ppb range in nature, it can be one hundred times higher indoors.

Indoor air quality (IAQ) is determined by the level of contaminants present, which may arise from a number of sources, e.g. human activity, various materials and products including HVAC systems, combustion processes, microbiological organisms such as mould and dust mites, outdoor air pollution, the ground under the building, among others.

Gasera’s products and technology enable extremely sensitive real-time indoor and outdoor air quality monitoring

A number of instruments exist on the market for simultaneous measurement of carbon dioxide (CO2), carbon monoxide (CO), temperature and humidity, which are fundamental measurements in the context of indoor air cleanliness and safety monitoring. However, there is a distinct gap in relation to affordable gas analysers that can provide real-time measurements of harmful Volatile Organic Compounds (VOCs) which are ubiquitous in the indoor environment. The number of VOCs detected in indoor air is usually higher than in outdoor air and has been increasing over the past decade. Some examples of these compounds include formaldehyde, toluene, benzene, xylene, perchloroethylene, etc.

Indoor air quality experts have confirmed that VOC species are important to gain knowledge about and monitor as they pose a serious health risk even at very low concentrations. Experts have also confirmed that Gasera’s gas analysis instrumentation is unique due to its extreme sensitivity, multicomponent analysis, and real-time measurements.

Currently the only way to monitor VOC species with acceptable sensitivity is using air samples that are then analysed in the laboratory (method is described in ISO 16000-6 standard). Gasera’s unique extremely sensitive portable gas analyzers are the solution for the complexity of today’s indoor air quality monitoring.

GASERA ONE formaldehyde analyzer can detect sub-ppb levels of formaldehyde both in indoor and outdoor ambient environment with a time resolution and response time of less than one minute. Gasera ONE formaldehyde is an autonomous analyzer baser on laser spectroscopy and it does not require any consumables or externals pumps. Read more about GASERA ONE FORMALDEHYDE here.