PMV/PPD

A person's sense of well-being in a room (level of comfort) depends on a series of particular external influencing factors. For example, people are extremely sensitive towards thermal radiation caused by cold walls or windows. We also respond to draughts in a room with thermal discomfort. Thermal comfort is defined by the following main influencing factors: indoor air temperature and radiation temperature, air velocity, relative humidity of the indoor air.In turn, the effect of these main influencing factors on a person's sense of comfort depends on his or her (level of) activity and clothing.

The international standard ISO 7730 combines all of the parameters in the PMV/PPD measurement (Predicted Mean Vote/Predicted Percentage Dissatisfied). The PMV is an index which predicts the average climate assessment value of a large group of people. The PPD Index provides a quantitative prediction of the number of people that will be dissatisfied with a certain ambient atmosphere.

1 Products or Recomendations for PMV/PPD
  • testo 480 - Climate Measurement Tool 

    Order-Nr. 0563 4800

    Air flow measurements in ducts, temperature measurements in laboratories, humidity measurements in production, pressure difference measurements in clean rooms. The Testo 480 climate measurement meter with a wide range of optional probes that allows you to measure, analyse and log these and a variety of other parameters with only one device. 

    • Measure multiple parameters Temperature, Humidity, Pressure Turbulence, Heat radiation, Co2 Lux, PMV/PPD, WBGT 

    • Professional software for reporting & data logging 

    • Highly accurate digital probes 

    • Intelligent calibration concept

    $1,901.90
    incl. GST
1 Products found