Ventilation

Ventilation

1. needed

   • provides indoor air quality
   • helps regulate thermal climate

2. pollutants

   • odors
   • irritants
   • toxic substances
   • biological contaminants
   • radon and soil gas
   • Impacts
     • comfort
     • psychological
     • health

3. Sick Building Syndrome

   • impacts
     • comfort
     • health effects
     • allergies
   • causes
     • increase in build. airtightness
     • reduces ventilation
     • increased used of electronics
     • lack of maintenance

4. fresh air

   • ventilation
   • infiltration
   • natural
   • mechanical

5. types

   • natural
     • rapid ventilation
     • trickle vent.
   • mechanical
     • extract
     • supply
     • balanced