Indoor air quality (IAQ)

Indoor health environment can bring people comfort, high work efficiency, health and well-being.

Indoor air quality monitoring

Indoor air quality (IAQ) is used to express as well as the temperature and humidityCarbon dioxide sensorMeasure, in order to protect the indoor environment comfort to people.Although the human comfort degree depends on the interaction of multiple variables, but compared with the pure optimal temperature, by measuring the indoor air quality (IAQ) to optimize relative humidity, temperature and carbon dioxide can meet more different people comfort requirements.

Watch the following video about visa, hvac sensors, or continue reading about how humidity affects the content of the indoor air quality.

Humidity affects the indoor air quality?

Low in indoor air relative humidity can cause people uncomfortable.Headache, eye irritation, sore throat and dry skin are in very dry indoor environment show symptoms.Dry air can reduce the air natural defense the spread of infection, make people more vulnerable to viruses and other organisms.In addition to the problems associated with dry low humidity, high humidity may also lead to problems.These problems may not be healthy grow and spread of biological contaminants may also be moisture damage to the building materials.

Often, the human is sensitive to humidity not like temperature.People usually do not turn your body unwell and potential health problems associated with changes in relative humidity.This is a good measurement technology can help feeling his place.Reliable humidity measurement is the key to the success of humidity control.

Carbon dioxide levels is how to influence the indoor air quality?

Demand controlled ventilation (DCV)By the number of according to occupy a space for ventilation control to play a role.The purpose of doing this is by efficient ventilation to provide users with better indoor air quality.

European standard EN 13779 (2007) will be a good indoor air quality are defined as follows: "indoor air quality can be classified according to the carbon dioxide concentrations."This view is throughMeasuring carbon dioxideAnd the corresponding control ventilation to control DCV established the foundation.The standards also set up the indoor carbon dioxide levels for 400-600 parts per million, is expected to the expected general level slightly higher than outdoor air (400 PPM).Modern ventilation system was established on the basis of this reasoning, in order to maintain efficient enough to ensure good indoor air quality at the same time.

But, in fact, it is mainly used in equipped with modern ventilation system of the modern office.Field research shows that the general office environment of co2 concentration to 1500 PPM, this may seem a very high level, but the thought of human security law is even higher: 8 hours in the period of 5000 PPM of carbon dioxide.

In indoor carbon dioxide levels rise, compared with the 400 PPM standard outdoor levels, under the 1400 PPM of carbon dioxide concentrations cognitive ability (such as crisis response, information use and overall arrangement) only by 20%.Some of the more mechanical ability (such as information search and task oriented) is not affected by too much.However, more demanding information applicationCognitive abilityThe impact is bigger.When carbon dioxide levels indoors, more advanced tasks will become much more difficult.Indoor air quality的准确测量以及更好的通风对在办公室内工作的人的认知能力至关重要。

Visa offers a variety of handheld and stationary, indoor air quality (IAQ) sensor to measure the relative humidity, temperature and carbon dioxide.Check out our all hvac products and services.

Indoor air quality is to use CO₂, the temperature and humidity sensor measure to protect the indoor environment comfort to people.Although the human body comfort depends on the interaction of multiple variables compared with pure optimal temperature, the temperature and relative humidity to optimize both will meet more different people comfort requirements.Carbon dioxide levels is a reflection of indoor air quality and human activity is an alternative measure.

Indoor health environment for people to bring comfort and efficient work, health and happiness.

Visa offers a variety of handheld and stationary, indoor air quality sensor to measure co2, relative humidity and temperature.