Cirebon is located in the northern coastal area of West Java Province, Indonesia, on the northwest coast of Java Island. It has a tropical rainforest climate, with high temperatures and humidity throughout the year, with an average annual humidity exceeding 85%. The precipitation is abundant and influenced by sea breezes, resulting in high levels of moisture, salt particles in the air, and a high content of microorganisms in the coastal area. As a port city and historical cultural city in the northern part of West Java, the city has both port trade, light industrial production, and tourism service functions. The building density is high, and the port dust, industrial production particles, and urban traffic pollutants interweave. Coupled with the humid coastal climate, indoor areas are prone to air stagnation, excessive humidity, mold growth, and rusting of metal components. Although Cirebon has prospered due to its port, the combination of high humidity, coastal, and industrial pollutants creates an environment where the ventilation and air quality control of sealed buildings are particularly important. The ERV (Energy Recovery Ventilation System) can continuously ventilate and exchange air while efficiently recovering the coldness and humidity from the exhaust air, significantly reducing the energy consumption for dehumidification and cooling, and also effectively intercepting salt particles from the sea breeze, port dust, industrial particles, and pollen from outside, precisely balancing the indoor temperature and humidity, fundamentally improving indoor air quality and protecting equipment and items from moisture and corrosion. The following places are particularly suitable for installing ERV systems:

The various residences in Cirebon are the core application scenarios for the ERV system. Whether it is multi-story apartments in the urban area, single-family houses along the coast, or residential complexes for workers in the suburbs, they can significantly improve the living experience by using the ERV system. As a coastal port city, the residences in Cirebon are mostly located in the urban area and around the port, to isolate from the outdoor high temperatures, salt particles from the sea breeze, and port noise. Residents often keep the windows closed and rely on air conditioning, which easily leads to poor indoor air circulation, increased carbon dioxide concentration, and at the same time, high humidity and salt penetration from the sea breeze can cause wall mold, furniture to deform and warp, and metal doors and appliances to rust. Port dust and traffic pollutants also enter the indoor area, affecting the respiratory health of residents. The ERV system can continuously introduce filtered fresh outdoor air without opening windows, effectively intercepting salt particles from the sea breeze, port dust, and industrial particles and pollen from outside, removing the stale air and excess moisture from the indoor area, and recovering the coldness from the exhaust air, reducing the operating load of the air conditioner, lowering the energy cost for residents, and controlling indoor humidity within an appropriate range, creating a dry, fresh, and clean living environment for residents. This is particularly important for families with elderly, children, and those with respiratory sensitivities, as well as residences near ports and coastlines, and those prone to the influence of sea breeze salt and dust.