Air filtration systems are devices designed to remove particles and contaminants from the air. They work by using filters that capture dust, pollen, smoke, and other pollutants, improving indoor air quality. Common types include HEPA filters, which can trap very small particles, and activated carbon filters, which help eliminate odors and gases. These systems are often used in homes, offices, and industrial settings to create a healthier environment. They can be part of heating, ventilation, and air conditioning HVAC systems or standalone units. Regular maintenance and filter replacement are essential for optimal performance and efficiency.