An air filter may be able to help with dog hair if the hair is airborne and being circulated through the air in your home. An air filter can help to capture and remove pet hair and other airborne contaminants from the air, improving the air quality in your home.nnThere are many different types of air filters available, and the effectiveness of a particular air filter in capturing pet hair will depend on its design and the size of the particles it is designed to filter. Some air filters, such as high-efficiency particle air (HEPA) filters, are specifically designed to capture very small particles and may be more effective at capturing pet hair than other types of filters.nnTo maximize the effectiveness of an air filter in capturing pet hair, it is important to choose an air filter that is suitable for the size of your home and the needs of your household. It is also important to regularly clean or replace the air filter according to the manufacturer's recommendations to ensure that it is functioning properly.