LEV, Belfast, Dublin



Indoor Air Quality (IAQ)

Indoor Air Quality (IAQ)
People spend most of their time in buildings, particularly homes and at work. Therefore the quality of air in these buildings can have a major influence on the amount and types of air pollutants to which people are exposed. Maintaining good Indoor Air Quality (IAQ) is thus important in order to prevent adverse effects relating to the health, comfort and performance of building occupants.

Source control, filtration and the use of ventilation to dilute contaminants are the primary methods for improving indoor air quality in most buildings. The number of incidents associated with ill health, discomfort and nuisance in the indoor environment is increasing. This is occurring at the same time as the indoor environment is becoming more complex and more enclosed.

Conditions that cause poor indoor air quality are frequently pinned down to flaws in the heating, ventilation, and air conditioning (HVAC) systems or infrequent / lack of sufficient cleaning & maintenance. Other causes have been attributed to contaminants produced by some types of building materials, volatile organic compounds (VOC), moulds, improper exhaust ventilation, or lack of adequate fresh-air intake/air filtration, infrequent or lack of ventilation.

Such incidents can have a very real effect in the workplace and the symptoms may include high levels of employee sickness or absenteeism, lower productivity, low job satisfaction and high employee turnover.

IAQ Audit Assessment
DevineAir Limited can provide a comprehensive Indoor Air Quality survey & report which will describe the observations, occupant perceptions & technical measurements and include recommendations and conclusions to confirm whether workplace conditions are meeting adequate standards in relation to human health & comfort. Are HVAC plants being maintained at an acceptable hygienic and mechanical standards? Is the building’s IAQ satisfactory? ┬áThe IAQ audit assessment approach can provide a cost effective method of screening for IAQ problems.

Key factors in determining IAQ include but are not limited to:

  1. Biological particles;
  2. Non-biological particles;
  3. Inorganic gases,
  4. Organic compounds in the vapour phase, Radon,
  5. Methane & associated landfill gases &
  6. Temperature, humidity & air movement.

The indoor environment is dynamic. Several of the factors may have complex interactions & concentrations may vary with time and space.