Building's indoor air quality monitoring is an identification and analysis of air quality parameters in selected building and time. Air quality is characterized by four parameters. These parameters are identified by using special measuring equipment - for example, Telaire 7001 CO2 sensor and Testo 925 Type K thermometer. During the monitoring the actual data of air parameters are extracted, collected and analysed, as well as conclusions on the building's indoor air quality are drawn.
These four parameters are:
- Indoor air temperature - international standard specifies the recommended indoor temperatures for different types of buildings, broken down by category of the building and season (in winter the necessary minimum temperature and in summer the maximum allowable, and it is determined at a specific thickness of clothing and activity level).
- The content of relative humidity - human by moving is sweating and give off moisture. Even if the perspiration does not give a visible moisture, then it excreted invisible moisture (approximately 900 g of moist air per day), where one-third of it is excreted through breathing, but two-thirds - through the skin.
- Air pollution - indoor air pollution may occur in two ways: either from people who are the primary source of carbon dioxide (CO2) in the room, or from different materials in the room, such as building materials, furniture, carpets, equipment, etc.
- Air movement speed - stagnant air in the room, which is heated, can create a feeling that it is rancid or it may cause odors, but on the other hand - even minor movement of air in cold or cool room creates a feeling that it is draughty in the room
All measurements and the obtained figures are evaluated by the standard LVS EN 15251:2007 established on the Cabinet of Ministers regulation No.1290 ("Regulations on Air Quality") and Latvian Construction Standard LBN 231-15 "Heating and ventilation in construction of residential and public buildings". However, in order to determine the actual air quality and how it changes in time course, we need to make a long-term measurements of air quality parameters and do it periodically. It is recommended to take measurements exactly in the heating season.
Air quality has an essential role on human health, so each of us has the right to good surrounded air quality.