Banjar is located in the southwestern part of West Java Province, Indonesia, in the agricultural hinterland surrounding Tangerang. It has a tropical rainforest climate, with high temperatures and humidity throughout the year, with an average humidity of over 80%. The precipitation is abundant and often accompanied by moisture brought by the monsoon. The surrounding farmlands are contiguous and the vegetation is dense. Pollen from farmlands, dust from crops, and mold spores from forests float in the air. As a small city mainly based on agriculture and supplemented by light industry, the buildings are mostly low-density but with gradually improving sealing. The indoor areas are prone to mold growth, stale air, and dampness in agricultural products storage due to high humidity. ERV (Energy Recovery Ventilation System) can continuously ventilate and exchange air while efficiently recovering the coldness and humidity in the exhaust air, reducing the energy consumption for air conditioning dehumidification, and also through multiple levels of filtration, it can intercept pollen, dust, and microorganisms from outside, precisely balancing the indoor temperature and humidity. It is crucial for improving the environmental comfort and production operation efficiency of various places. The following places are particularly suitable for installing ERV systems:
The various residences in Banjar are the core application scenarios for the ERV system. Whether it is multi-story apartments in the urban area, regular residential communities of villagers, or the farmland workers' residences in the suburbs, or the single-story houses near the mountains and forests, they can all improve the living experience by using the ERV system. The local residents have always kept their windows and doors closed to isolate from the outdoor high temperatures, pests in farmlands, and dust, relying on air conditioners. This often leads to poor indoor air circulation, increased carbon dioxide concentration, and the damp environment can cause wall dampness, furniture mold, and damp and smelly clothes. Farmland pollen and crop dust can also cause discomfort for the elderly, children, and people with respiratory sensitivities. The residences near the mountains and forests are also affected by the penetration of mold spores and fine dust from the forest. The ERV system can continuously introduce fresh outdoor air filtered through, effectively intercepting pollutants such as farmland pollen, crop dust, and forest mold spores, removing the stale air and excess moisture from the indoor area, and recovering the coldness in the exhaust air, reducing the operating load of air conditioners, which not only lowers the energy cost for residents but also controls the indoor humidity within an appropriate range, creating a dry and fresh living environment for residents.

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