Supply and exhaust ventilation (приточно-вытяжная вентиляция) is one of the most effective ways to maintain stable indoor air quality because it controls both incoming fresh air and the removal of stale air. In Los Angeles, where outdoor conditions can vary from coastal humidity to inland heat and occasional smoke, a balanced approach helps keep comfort predictable and reduces odors, moisture, and CO2 buildup. For homes, the best choice is often a compact balanced system with filtration and, ideally, heat or energy recovery (HRV/ERV). These units bring in fresh air while recovering part of the energy from the exhaust stream, which can lower cooling and heating loads. Homeowners typically prioritize quiet operation, easy filter replacement, and smart controls (timers, humidity sensors, or CO2 sensors). If allergies are a concern, consider higher-grade filters (such as MERV-rated options) and confirm that the unit can handle the added resistance. For commercial properties—offices, retail, studios, restaurants—selection starts with occupancy, operating hours, and zoning requirements. Higher and more variable foot traffic usually demands stronger airflow control, robust filtration, and reliable balancing. Many businesses benefit from ERV systems that help manage both temperature and humidity, improving comfort while reducing HVAC strain. Integration with building management systems, duct layout complexity, and maintenance access are key. When choosing a system, compare airflow capacity, noise level, filtration, recovery efficiency, installation constraints, and service intervals. A proper design and commissioning (testing and balancing) matter as much as the equipment itself—ensuring consistent ventilation, healthier air, and long-term efficiency.
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