It's good to know what's on the air.

Volatile Organic Compounds (VOCs)

VOCs (volatile organic compounds) are organic compounds containing carbon that evaporate even at low temperatures. In many cases, VOCs are largely harmless to living organisms, despite their impact on well-being. However, this group of substances also includes substances that are hazardous to health, such as formaldehyde.

Air temperature (T)

Air temperature has a significant influence on the rate of chemical processes and, therefore, on human metabolism. For this reason, it is useful to measure it. Temperatures that are too high or too low can negatively affect mental or physical health.

Dew point (Td)

The dew point refers to the temperature at which the relative humidity of the air is 100% and the water vapor present in the air would immediately begin to condense into water.

Nitrogen dioxide (NO₂)

Nitrogen dioxide (NO₂) belongs to the group of nitrogen oxides. It is a reddish-brown gas with a pungent odor similar to that of chlorine. NO₂ severely irritates the respiratory tract and contributes to asthma.

Hydrogen sulfide (H₂S)

Hydrogen sulfide is a colorless, foul-smelling, highly toxic, combustible, and highly flammable gas. It has the characteristic odor of rotten eggs and is formed by the decomposition of sulfur-containing amino acids by putrefactive and sulfur-oxidizing bacteria.

Sulfur dioxide (SO₂)

Sulfur dioxide is a colorless, irritating gas with a pungent odor and a sour taste; humans can detect it at concentrations ranging from 0.8 to 4.0 mg/m³.

Oxygen (O₂)

Molecular oxygen (O₂) is a colorless, odorless gas that makes up 21% of the air. On the Earth's surface, oxygen is the most abundant element by mass.

Radon (Rn)

Radon is a noble gas whose decay releases radioactive particles (known as alpha radiation).

Ozone (O₃)

Ground-level ozone (O₃) is formed by the reaction of oxygen, nitrogen oxides, and volatile organic compounds under intense solar radiation. Even at slightly elevated concentrations, it causes severe irritation of the mucous membranes and the respiratory tract.

Methane (CH₄)

Methane is a flammable gas and the main component of natural gas.

Relative humidity (ρ)

Air humidity refers to the proportion of water vapor in the gaseous mixture that makes up the air. Air humidity that is too high or too low indoors can negatively affect human well-being and health.

Absolute humidity of the air (φ)

Absolute humidity describes the density of water vapor—that is, the mass of water vapor contained in a given volume of air.

Atmospheric pressure (p)

Atmospheric pressure is generated by the continuous movement of air masses. As part of atmospheric environmental conditions, it directly influences human health and well-being.

Light / Illuminance (lx)

The light sensor measures light intensity by detecting the brightness of incident light and converting it into a digital signal. It takes into account only the spectrum of light perceptible to the human eye and ignores infrared and ultraviolet radiation.

Maximum noise level (Lp_max)

Unlike the “normal” noise level, which reflects background noise, the peak noise level reflects sudden, loud noise events, such as a brief, loud bang during the night. These events, as recorded by the peak noise level, can abruptly interrupt rest periods and cause stress.

Ruido (LP)

Sound becomes noise when unwanted sounds are perceived as annoying, unpleasant, or disruptive. As a psychosocial stressor, noise can seriously affect well-being and performance.

Laughing gas (nitrous oxide) (N₂O)

Nitrous oxide is a colorless, tasteless gas with a slightly sweet odor. Known as "laughing gas," it is primarily used in medicine as an analgesic and anesthetic.

Carbon monoxide (CO)

Carbon monoxide (CO) is produced, among other causes, by the incomplete combustion of carbon-containing substances. This colorless, odorless, and tasteless gas is a potent respiratory toxin that quickly reaches dangerous concentrations in unventilated spaces.

Carbon dioxide (CO₂)

Carbon dioxide (CO₂) is a natural component of the air and a major greenhouse gas in Earth's atmosphere. Excessively high concentrations of carbon dioxide indoors can lead to reduced performance and fatigue, and in severe cases, potentially life-threatening breathing difficulties.

Formaldehyde (CH₂O)

Formaldehyde is a colorless substance with a pungent odor that exists as a gas at room temperature. Because it is used in adhesives, formaldehyde is now very common in indoor environments and is found in many wood panels and pieces of furniture.

Fine particulate matter (PM₁ – PM₂,₅ – PM₁₀)

Fine particles are defined as a mixture of solid and liquid particles in suspension with a very small diameter. Depending on their size and composition, fine particles can cause long-term damage to the respiratory tract and the cardiovascular system. The air-⁠Q air analyzer can measure fine particles of various sizes (PM₁₀, PM₂.₅, PM₁).

Chlorine / chlorine gas (Cl₂)

Chlorine (Cl₂) is a highly reactive, toxic, greenish gas. At low concentrations, it irritates the mucous membranes and the respiratory tract; at high concentrations, it is corrosive.

Ammonia (NH₃)

Ammonia (NH₃) is a colorless, toxic gas with a pungent odor. It irritates the eyes and respiratory tract and has an asphyxiating effect. As a raw material, ammonia is one of the most widely produced industrial chemicals in the world. In nature, it occurs as a reaction product of urea and various salts.