The EnFluid team has assessed and determined that the currently installed system is unsuitable for residential use. The operating parameters, including airflow and static pressure, were evaluated against system requirements. Following multiple field tests, the team observed excessive thrust accompanied by unusual tonal noise from the system. Additionally, it was noted that the operation of several fans from different mechanical rooms significantly affected the receiver, resulting in concerning cumulative sound pressure levels (SPL). To address these challenges, the EnFluid Team has proposed a specialized impeller design known as the sickle-shaped impeller from the PropEC Grid family. This approach represents a complete shift in methodology, featuring a unique blade design that reduces sound transmission from 32 meters to 10 meters. Consequently, the overall effect is that the SPL remains below the background noise level, with no additional noise generated during peak conditions. The background noise consistently measures between 67 to 70 dB(A), and the team successfully achieved the desired levels during both daytime and midnight assessments. Furthermore, the new generation of impeller and motor technology operates more quietly, with an 84% reduction in power consumption compared to the existing system. This transformation results in a beneficial outcome for both the client and the tenants following the comprehensive upgrade.