Depok is located in the southern part of West Java Province, Indonesia. It is a core satellite city to the south of Jakarta and seamlessly connects with the urban area of Jakarta. It has a tropical rainforest climate, with high temperatures and humidity throughout the year, with an average humidity of over 80%. It receives abundant precipitation and mostly has convective rain. As an important part of Jakarta's commuting circle, the city has a high building density and a dense population, with residential and commercial buildings mostly having sealed structures. Along with the fine particulate matter from surrounding industries and transportation, indoor air is prone to become stagnant, with excessive humidity, mold growth, and other problems. Although Depok has developed rapidly relying on Jakarta's economic radiation, the ventilation conditions of the city are restricted due to the dense buildings, and 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 being able to intercept fine particles, pollen, and traffic pollutants through multiple levels of filtration, precisely balancing the indoor temperature and humidity, fundamentally improving indoor air quality. This is particularly crucial for enhancing the environmental comfort and operational efficiency of various places. The following places are particularly suitable for installing ERV systems:

The various residences in Depok are the core application scenarios for the ERV system. Whether it is high-rise apartments in the urban area, need-based residential communities, or row houses in the suburbs, they can significantly improve the living experience by using the ERV system. As a "sleeping city" of Jakarta, the residences in Depok mainly serve commuters working in Jakarta. These residences are mostly modern sealed buildings, and to isolate from the high temperatures and traffic noise outside, residents often keep the windows closed and rely on air conditioners, which easily leads to poor indoor air circulation, increased carbon dioxide concentration, and mold growth. The high humidity environment also causes walls, furniture, and clothes to mold, and the fine particles from transportation will enter the indoor, affecting air quality. The ERV system can continuously introduce filtered fresh outdoor air without opening windows, effectively intercepting outdoor pollutants, pollen, and fine particles, removing the stale air and excess moisture from the indoor, and recovering the coldness from the exhaust air, reducing the operating load of air conditioners, lowering indoor humidity to an appropriate range, and creating a dry, fresh, and quiet living environment for commuters, especially suitable for families with elderly, children, and those with respiratory sensitivities, as well as residences near main roads and prone to traffic pollution.

As a major educational and commercial center in the southern part of West Java Province, Depok gathers renowned universities such as the Indonesian University, various primary and secondary schools, and vocational colleges. It also has a large number of government office buildings, technology enterprise office spaces, e-commerce parks, and business office buildings. These educational and commercial office buildings are important application targets for the ERV system. The classrooms, libraries, and laboratories of universities are densely populated and have sealed buildings that are constantly running air conditioners, making the indoor air become dirty due to breathing and heat dissipation from teaching equipment. The excessive carbon dioxide concentration will affect the learning and teaching efficiency of teachers and students. Laboratories also have special requirements for air cleanliness. Office buildings are also humid and prone to moisture due to high humidity, causing computers, printers, and other equipment to get damp and archives to mold. The ERV system can continuously supply filtered fresh air to classrooms, laboratories, libraries, and open office areas, independent offices, and meeting rooms of educational and commercial buildings, diluting harmful gases and moisture in the indoor air, filtering outdoor pollutants, and reducing air conditioning energy consumption through the energy recovery function. This ensures the health of teachers and students and improves learning and work efficiency, protecting teaching and research equipment and office files from moisture damage, reducing building operation costs, and is particularly suitable for areas with high environmental requirements such as precision laboratories in universities, data centers of enterprises, and archives.