ERV ventilation systems, or Energy Recovery Ventilation Systems, recover energy from indoor and outdoor air during ventilation, improving indoor air quality while reducing energy 

consumption. The following locations in New Hampshire are suitable for installing ERV ventilation systems:

- **Residential Buildings**: New Hampshire has long, cold winters and short, cool summers, with annual precipitation around 1000 mm, most of which is snowfall. ERV ventilation systems can 

recover heat from indoor exhaust air in winter to preheat cold outdoor air and regulate humidity to prevent excessively dry indoor air; in summer, they recover cooling energy and dehumidify, 

reducing the burden on air conditioning systems. Especially in well-sealed, energy-efficient homes, installing an ERV system can ensure indoor air quality while reducing energy consumption 

and improving living comfort.

- **Commercial Buildings**: In densely populated commercial spaces such as office buildings and shopping malls, where indoor air quality requirements are high, ERV systems can continuously 

introduce filtered fresh air, reducing the concentration of pollutants such as CO₂ and formaldehyde. At the same time, commercial buildings typically have large air conditioning and heating loads; 

ERV systems can recover 60%–80% of the exhaust air energy, helping to save energy costs.

- **Schools and Hospitals:** These locations have extremely high requirements for indoor air quality and comfort. ERV systems effectively filter particulate matter, pollen, and other pollutants from the air, 

providing a healthy breathing environment for teachers, students, and patients. Their temperature and humidity control functions also help create a comfortable indoor environment, which is beneficial for 

learning and recovery.

- **Laboratories and Research Institutions:** Some laboratories have strict requirements for temperature, humidity, and air quality. ERV ventilation systems can precisely regulate indoor temperature and 

humidity while ensuring air freshness and cleanliness, meeting the needs of the experimental environment.