Invisible gases and particles in the air you breathe.

We breathe more than 20,000 times a day without knowing what substances are in the air, where and how they come about, what effects they have on us, or what the exposure limits are. We have compiled information for you on the exposure limits for gases, particles, and pollutants found in indoor air.

air-Q and air-Q radon air quality monitors

These substances affect your health and well-being—learn all about the quality of the air you breathe

Here you can learn about the invisible gases and particles present in the air you breathe. We explain how these various substances and compounds are formed and what effects they have on you. You’ll also get an overview of the often complex definitions of exposure limits, such as those set by the Federal Environment Agency or the WHO. This leads to recommendations for improving your indoor air quality in a sustainable way.

Measured Values and Sensors

All measured values and sensors at a glance

Click on a measured value to view the details, limit values, and corresponding air-⁠Q variants.

Gaz polluants Capteur individuel Capteur individuel Environnement Infrasons Infrasons Gaz polluants H2 Hydrogène Gaz polluants COV Composés Organiques Volatils Gaz polluants C4H8S Tétrahydrothiophène Climat T Température de l’air Climat Td Point de rosée Gaz polluants NO Monoxyde d’azote Gaz polluants NO2 Dioxyde d’azote Gaz polluants SiH4 Silane Gaz polluants H2Se Séléniure d’hydrogène Gaz polluants H2S Sulfure d’hydrogène Gaz polluants SO2 Dioxyde de soufre Environnement O2 Oxygène Environnement Rn Radon Gaz polluants C3H6 Propène Gaz polluants COCl2 Phosgène Gaz polluants O3 Ozone Gaz polluants PH3 Phosphine Gaz polluants CH4S Méthanethiol / méthylmercaptan Gaz polluants CH4 Méthane Climat ρ Humidité relative de l’air Climat φ Humidité absolue de l’air Climat p Pression atmosphérique Environnement lx Lumière / Éclairement lumineux Environnement Lpmax Bruit valeur maximale Environnement Lp Bruit Gaz polluants N2O Gaz hilarant (protoxyde d’azote) Gaz polluants CO Monoxyde de carbone Gaz polluants CO2 Dioxyde de carbone Gaz polluants C4H10 Isobutane Gaz polluants PID Capteur COV industriel Gaz polluants N2H4 Hydrazine Gaz polluants CH2O Formaldéhyde Gaz polluants HF Fluorure d’hydrogène Gaz polluants F2 Fluor Particules Comptage de particules fines Comptage de particules fines Particules PM1 – PM2,5 – PM10 Particules fines Gaz polluants C2H4O Oxyde d’éthylène Gaz polluants C2H6 Éthane Gaz polluants B2H6 Diborane Gaz polluants ClO2 Dioxyde de chlore Gaz polluants Cl2 Chlore / gaz cloré Gaz polluants C4H10 Butane Gaz polluants HBr Bromure d’hydrogène Gaz polluants Br2 Brome Gaz polluants HCN Acide cyanhydrique Gaz polluants AsH3 Arsine Gaz polluants NH3 Ammoniac Gaz polluants Alcools Alcools
air-Q air quality monitor

Monitor air quality, all air components, and environmental factors with air-⁠Q. For your health and performance.

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