Benefit of HRV/ERV
Without proper air exchanger could cause:
1. House Damp
2. Uncomfortable room temperature
3. Allergy risk
4. Condensation on windows during cold seasons
With well prepared HRV/ERV will:
1. Provide fresh air into rooms consistently without opening any window
2. Improve energy efficiency by recovering heat or cooling air from exhaust air in different seasons
3. Avoid mold and mildew
4. Clean out air pollutants
So, what are you still waiting for?