Our Specialization

BUILDING IAQ,HUMIDITY & MOLD CONTROL

Building Indoor Air Quality (IAQ)

Definition

Indoor Air Quality refers to the condition of the air inside buildings, especially
as it relates to the health and comfort of occupants.

Key Factors Affecting IAQ:

  • Ventilation: Proper air exchange with fresh outdoor air.
  • Pollutant Sources: VOCs from paints, cleaning agents, furnishings, etc.
  • Filtration: Eciency of HVAC lters in removing particulates and allergens.
  • Moisture Control: To prevent mold and mildew.

Why it matters

  • Ventilation: Proper air exchange with fresh outdoor air.
  • Pollutant Sources: VOCs from paints, cleaning agents, furnishings, etc.
  • Filtration: Eciency of HVAC lters in removing particulates and allergens.
  • Moisture Control: To prevent mold and mildew.

Humidity Control

Definition:

Controlling the amount of moisture in the air within a building.

Ideal Indoor Humidity Range:

  • Below 70% Relative Humidity (RH)

Too High Humidity Risks:

  • Promotes mold and dust mites.
  • Causes discomfort and damage to building materials.

Too Low Humidity Risks:

  • Dry skin and eyes.
  • Increased risk of respiratory irritation and infection.
  • Cracking of wood and static electricity.

Humidity Control Methods:

  • Dehumidiers (for high humidity)
  • Humidiers (for low humidity)
  • Proper HVAC design with humidity sensors and controls
  • Building envelope design to prevent moisture ingress3.

Mold Control

What is Mold?

  • A type of fungus that thrives in moist environments.
  • Common in bathrooms, basements, and around leaks.

Mold Risks:

  • Health issues: allergic reactions, asthma, respiratory problems.
  • Structural damage to buildings.
  • Musty odors and unsightly stains.

Prevention Strategies:

  • Keep indoor RH below 70%.
  • Fix leaks and water damage promptly.
  • Ensure good ventilation in damp areas.
  • Use mold-resistant building materials in prone areas.
  • Regular inspections and maintenance.
  • Design Stage: Use materials and systems that support good IAQ and moisture control (e.g., vapor barriers, proper drainage, balanced ventilation).
  • Construction Phase: Avoid trapping moisture during building; ensure systems are installed correctly.
  • Operation and Maintenance: Regular HVAC servicing, IAQ monitoring, and moisture inspections.
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