Compact filters are high-performance air filtration units commonly used in HVAC (Heating, Ventilation and Air Conditioning) systems. These filters are designed to improve air quality and clean indoor air. Compact filters often have special designs that can filter out solid particles as well as germs, bacteria, mold spores and other harmful substances. These filters are often used in large buildings, hospitals, laboratories, industrial facilities and other commercial and industrial applications. Compact filters are typically manufactured using high-efficiency HEPA (High Efficiency Particulate Arresting) or ULPA (Ultra High Efficiency Particulate Arresting) filtration technology. These filters can retain 99.97% of airborne particles down to 0.3% micron size. Compact filters have special designs that optimize airflow and can often be easily integrated into air ducts. Regular maintenance and replacement of these filters keeps HVAC systems operating effectively and helps maintain indoor air quality.