Air filtration is the process of removing particles and contaminants from the air to improve its quality. This is typically achieved using devices like air purifiers or HVAC systems equipped with filters. These filters can capture dust, pollen, smoke, and other pollutants, making the air cleaner and healthier to breathe. There are various types of air filters, including HEPA filters, which are highly effective at trapping small particles. Regular maintenance and replacement of filters are essential to ensure optimal performance. Effective air filtration can benefit both indoor environments, such as homes and offices, and outdoor air quality.