How much fresh air
Codes and standards set minimum outdoor air rates based on the use and the number of people. Spaces such as kitchens, treatment rooms and fitness studios need more.
Too little air leads to stuffiness and complaints. Too much wastes energy, particularly in cold weather.
Spaces with cooking, chemicals or high activity may also need local exhaust, which must be balanced against the supply air.
Filtration
Filters remove dust and particles. Higher-grade filters catch more but resist airflow, so the fan and ducts must be able to handle them. Filters must also be changed on schedule.
Our mechanical crew can check whether existing equipment can take upgraded filters.
Humidity and temperature
Alberta's dry winters can make indoor air uncomfortable. Humidification may help in some uses, but needs design and upkeep. In summer, cooling coils help control moisture.
Balanced systems are more consistent than manual fixes.
Plants, carpets and furnishings can also add or reduce dust, so choose materials with upkeep in mind.
Energy recovery
Heat recovery ventilators and energy recovery units pass heat from outgoing air to incoming air. They can reduce heating costs in cold climates and are worth considering in larger projects.
They need space and maintenance, so plan for access.
Test and balance
After installation, airflows are measured and adjusted so each room gets the right amount. Skipping this step is a common reason for poor performance.
We coordinate commissioning with our own electrical and controls work, then hand over clear records.
Questions we hear
Does better air quality cost much?
Often modestly, particularly if planned during construction. Retrofits may cost more.
Will opening windows help?
Not reliably. Mechanical ventilation provides measured, controlled fresh air.
Can you improve the existing system?
Often. Filter upgrades, rebalancing and controls changes can help without replacing equipment.