Fresnillo has a dry plateau climate, with cool winters and hot summers, large temperature differences between day and night, and low humidity. ERV (Energy Recovery Fresh Air) is most 

suitable for areas and buildings with good airtightness and high requirements for indoor air quality and energy efficiency. It can not only continuously exchange air but also recover exhaust 

energy, reducing the load and operating costs of air conditioning/heating.

The city center and historical area (Centro Historico) is the core application area of ERV. The boutique hotels, homestays, small offices and government office buildings here generally have 

good air tightness and limited window openings. ERV can be concealed and installed on the ceiling or mezzanine, equipped with high-efficiency filters and App control, taking into account 

ventilation, energy conservation and protecting the colonial style. Enhance customer experience and operation and maintenance efficiency; The cultural and tourism facilities and small 

commercial areas around are also suitable for this type of renovation plan.

The new suburban area along the highway corridor connecting the city of Zacatecas is densely populated with new commercial complexes, office buildings and high-end residences. It has 

both high density and high ventilation demands. It is suitable to adopt a centralized ERV+DOAS (independent fresh Air system), with fresh air/exhaust outlets arranged in different areas and 

avoiding pollution sources. The App control is compatible with intelligent building management Significantly reduce the unit capacity and operating costs; High-end townhouses and apartment 

buildings are suitable for individual ceiling/wall-mounted ERVs, equipped with bypass and electric auxiliary heating to cope with the low temperatures in winter and enhance the living comfort.

Public buildings such as schools, hospitals and laboratories in the education and medical zone (such as around local universities and hospitals) have strict requirements for ventilation volume and 

cleanliness. ERV, combined with high-efficiency filtration and redundant design, can not only meet hygiene standards but also operate in both winter and summer, especially suitable for places that 

operate 24 hours a day. The fresh air inlet should be placed high and away from pollution sources. The exhaust outlet should be kept at a sufficient distance from the fresh air outlet. Regular 

maintenance and filter replacement plans can ensure long-term stable operation.

For factories, warehouses and supporting offices in suburban industrial zones and logistics parks that have temperature and humidity control requirements, industrial-grade ERVs are suitable. The fresh 

air inlet is placed high and far away from dust/fume sources. The temperature and dust resistant design is suitable for 24-hour operation, reducing the air conditioning load while ensuring personnel 

health and a stable production environment.

In comparison, traditional low-rise houses, open courtyards and old buildings with good natural ventilation have a low return on investment for ERV. It is more cost-effective to prioritize optimizing 

natural ventilation and shading. Places with limited budgets and no regular maintenance are also not recommended to rush to install ERV, as it may affect the effect and the lifespan of the equipment.