Air filtration systems are devices designed to remove contaminants from the air in a room or building. They work by using filters to capture dust, pollen, smoke, and other particles, 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 promote a healthier environment. Regular maintenance, such as changing filters, is essential for optimal performance. Air filtration systems can also be beneficial for individuals with allergies or respiratory conditions, providing cleaner air to breathe.