intelligent FRESH AIR systems
Heat and Energy Recovery Technologies
intelligent FRESH AIR systems
Tel: (61) 03 5427 3175 Mob: 0412 482 060 Post: PO Box 853, Woodend, Vic. Australia 3442 Website : www.air2energy.com.au
Frequently Asked Questions
2. Why is it important to ventilate?
Ventilation is the key to improving indoor air quality !
"Indoor air quality is influenced by two major components: the amount and quality of outdoor air getting in, and indoor sources of emissions."*
| Contributing factor to indoor air quality | Percentage of cases |
|---|---|
| Inadequate ventilation | 52 |
| Contamination from inside the building | 16 |
| Contaminants brought in from outside the building | 10 |
| Microbiological contaminants | 5 |
| Building material contamination | 4 |
| Cause not determined | 13 |
The above information comes from the Australian Government Air Toxics website.
Ventilation assists in controlling relative humidity which:- controls dustmite and molds
- reduces lifetime of airborne viruses and bacteria
- controls offgasing from building materials and furnishings.
Ventilation replenishes oxygen levels:
- to provide adequate levels for occupants to breathe
- and to ensure gas fired appliances burn correctly.
Why "Natural" ventilation (using windows and doors) doesn't always work
- The weather is unpredictable, ie. too windy, no breeze, too cold or hot,
- Poor location of doors and windows often restricts good cross ventilation,
- Indoor temperature control is lost when windows and external doors are left open,
- Windows don't filter (dust, pollen, outdoor pollution and noise), and
- Home Security can be compromised.