In the confined space is the set of chemical, physical and biological properties of the air can affect the comfort and welfare of the occupants.

All factors (temperature, humidity, air speed) regulating the conditions of closed environments.

Expresses the ratio between the solute and the amount of solvent (air) to forming chemical solution.

The contaminant is a substance that alters the IAQ.

Volatile organic compounds (VOC) include different groups with different chemical and physical behaviors. Are classified as VOC, by hydrocarbons containing carbon and hydrogen (aromatic) and all other compounds of aldehydes, ethereal, alcohol, and formed other, clorofluorocarburon (CFC), varnishes natural and synthetic materials.

Particulates, or suspended particulate matter or particulate matter or total suspended (pts), are terms that identify the mixture, complex and changing of the suspended substances in the air (fiber, carbon particles,metal,silica,polluting liquid or solid).

Parts per million (ppm)
Unit of measurement used to indicate very low levels of concentration of a chemical or any substance. The value of ppm is equivalent to the divisible amount multiplied by one million.

Legislation and international guidelines:
The rules & guidelines regarding exposure limits of contaminants in indoor environments, conforms to international standards TLV ( threshold limit value = threshold limit value), as a reference tool for confined spaces.

Above, there are standards to which reference is made to limit values ​​for human health, dictated by various institutions in relation to staff contaminants, concentration and extent.

The IAQ diagnosis at confined environments, is through the use of appropriate tools and precise method of investigation on the environmental parameters measured.

The resolution is done by use tested and certified systems.

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