testo IAQ and Air Velocity Measuring Multi-functional Instruments скачать в хорошем качестве

testo IAQ and Air Velocity Measuring Multi-functional Instruments

Regular measurement of indoor air quality and comfort levels in workplaces enables the exact setting of the indoor climate and reduces fatigue and tiredness of the staff and fosters better staff performance. The carbon dioxide concentration and the indoor air quality in interiors are deemed to be the most important indicators that the quality of the indoor air is good enough, when people themselves are the main source of emissions. Poor indoor air quality leads to tiredness, lack of concentration and can even bring about illnesses. The CO2 concentrations should therefore not exceed 1,000 ppm as a rule. ir velocity in indoor areas directly affects thermal comfort. The turbulence is given as a percentage, calculated from the mean air velocity and air temperature in indoor areas. The turbulence indicates the air velocity fluctuation and intensity of air flow in an indoor area. There is a direct correlation between the air temperature and turbulence measured. People's sense of well-being in a room, their comfort level, depends on a series of particular external influencing factors. These measurement parameters can be determined by comfort level measurement and influenced appropriately: Air temperature, air humidity, air movement and thermal radiation. For all, testo offers its IAQ and multi-functional measuring instruments - testo 440 and testo 400.