Real-time monitoring of low formaldehyde concentration in outdoor and indoor ambient air!
Real-time monitoring of low formaldehyde concentration in outdoor and indoor ambient air!

Real-time monitoring of low formaldehyde concentration in outdoor and indoor ambient air!

Thanks to the clever combination of an ultra-sensitive cantilever enhanced photoacoustic detection technology and a Quantum Cascade Laser source, the Gasera One Formaldehyde is able to provide enough sensitivity (sub-ppb level!) to reliably measure ambient background levels of formaldehyde in real time.

It also gives an exceptionally high level of stability with a re-calibration longer than one year, and thus it offers a low total cost of ownership. A major advantage of the photoacoustic effect is that sensitivity is not dependent on the absorption path length. This allows high sensitivity with a short absorption path length, and a highly linear response over a wide dynamic measurement range with very low sample volumes (typically only a few milliliters). Have a quick look at the short video presenting the device.

The Gasera One Formaldehyde was field tested in static and dynamic conditions at a holyday and training center in Southern Finland. The center consists in eight separate wooden houses, built from 1950s to 1990s. The indoor air formaldehyde concentration was recorded in 50 rooms during the testing and varied from 4 to 200 μg/m3. The highest formaldehyde concentrations were measured in rooms where 1970s particle board was abundantly used in combination with poor ventilation. The average indoor air formaldehyde concentration clearly exceeded the annual average value of 50 μg/m3 (decreed by the Finnish regulation) in two buildings.

The measurement results of the Gasera One Formaldehyde were compared to the measurement results of the more traditional DNPH method based on cartridge sampling and liquid chromatographic laboratory analysis (reference method). The results agree well considering that the reference method has an uncertainty of 15 % and a minimum detectable formaldehyde level of 5 μg/m3.

This study showed clear differences in measured formaldehyde levels based on the building type. It also highlighted analyzer sensitivity, linearity and fast response time to ambient and indoor concentrations changes. Moreover, field measurements of the GASERA ONE FORMALDEHYDE in comparison against reference method showed high consistency. More results from this study are available here in the related application note.

  • For more information on technical specifications of Gasera One Formaldehyde, please consult the data sheet.
  • We will also be delighted to answer your question and assist you further. So feel free to contact us dropping a mail to info@envicontrol.com or through the contact form.
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Monitoring low levels of formaldehyde in ambient air News: Monitoring low levels of formaldehyde in ambient air

Formaldehyde, chemical formula HCHO or CH2O, is a colorless gas with a pungent odor. Levels above 0.1 ppm can cause allergy and acute health problems, e.g. sore throat, skin irritation, nausea, scratchy eyes and cough. Formaldehyde (HCHO) is also classified as highly carcinogenic compound. Exposure to moderate amounts of HCHO has been linked to cancer, such as leukemia.

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Stable isotopes act as tracers for studying flows and fluxes of material through ecosystems and the atmosphere. In practice, scientists measure the stable carbon isotope content of air, plants and soil to quantify many phenomena including the recycling of carbon dioxide within forests, water use efficiency, partitioning ecosystem carbon exchange into its components, gross primary productivity and ecosystem respiration, and to identify and quantify the distribution and contributions of plant species to global productivity. In addition, stable isotopes of carbon may be used to determine the effectiveness of carbon sequestration strategies. For these studies, investigators require fast, accurate measurements over a wide range of carbon dioxide concentrations.

ABB LGR-ICOS Carbon Dioxide Isotope analyzers exceed all of these requirements.

Cloud Condensation Nuclei (CCN) counter News: Cloud Condensation Nuclei (CCN) counter

Droplet's CCN-100/200 measures the count and size of individual aerosol particles that can form into cloud droplets. Its fast response time allows use in either airborne or ground-based stations.

Photoacoustic detector for solid, semi-solid and liquid samples News: Photoacoustic detector for solid, semi-solid and liquid samples

The INRAe of Narbonne has bought an ultra-high performance photoacoustic detector for solid, semi-solid and liquid samples (a PA301 module produced by Gasera). The PA301 is used as an accessory for any FTIR device. Last week, the Envicontrol team provided on site setup and a full training has been given.

Flux measurements News: Flux measurements

Los Gatos Research (LGR) now offers more analyzer choices to measure surface-atmosphere fluxes. Traditionally, there are four main flux measurement techniques: Eddy Covariance, Relaxed Eddy Accumulation, Gradient and Chamber-based. Though carbon dioxide and water vapor are the most common greenhouse gases measured, in many ecosystems a number of different gases must be measured. LGR's technology has improved rapidly over the years and new analyzers are now available allowing scientists to expand their research by measuring other greenhouse gases such as methane, nitrous oxide, carbon monoxide, ammonia, and carbonyl sulfide.

Envicontrol Germany News: Envicontrol Germany

Envicontrol is increasing his presence in Europe with the setup of a subsidiary in Germany. Envicontrol GmbH is now fully established in Köln.

From Germany, for any commercial request, please contact Hans Helsen. For technical support, contact Tobias Könemann.

We are close to our customers and will be even closer tomorrow.

VMM choose our NOx analyzers News: VMM choose our NOx analyzers

The Vlaams Milieu Maatschappij (VMM) has chosen to work with Envicontrol for the NOx monitoring within the Flemish air quality monitoring network. The T200 analysers from TAPI will take place soon and 45 units are foreseen to be delivered before the end of 2021.

Measuring ships SO2 emissions with OPSIS News: Measuring ships SO2 emissions with OPSIS

Last week during the ship's stopover at the harbour of Antwerp, the Envicontrol team has maintained the OPSIS analyser monitoring CO2 and SO2 on the “Nabucco” vessel.

We participate in various fairs and seminars around Europe where we can keep you informed of the latest developments and possibilities in the field of measurement and analysis equipment. Below you will find an overview of the events we visited recently and the events where you can meet us soon.


Envicontrol Belgium

P +32 (0) 81 713 491

Rue Phocas Lejeune 25
B-5032 Les Isnes

Envicontrol Deutschland

P +49(0)221 7907 7054

Waidmarkt 11
DE-50676 Köln

Envicontrol France

P +33(0)1 39 76 04 19

Route de Sartrouville 54
F-78230 Le Pecq

Envicontrol Nederland

P +31(0)418 651 158

Valeton 25
5301 LW Zaltbommel
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