What is one of the best air filter for a furnace? One of the hands-down best furnace filters you can buy is the Honeywell Elite Allergen Pleated Air Filter. This highly-rated filter has the highest FPR possible and comes in a wide range of sizes, fitting most all furnaces. What is the easiest way to filter the indoor air in your home? Probably one of the easiest and most effective ways to get rid of dust in your home is to add an air purifier. Air purifiers work by pulling in air from the room and pushing it through a series of filters. These filters have multiple layers and the ability to trap contaminants, including dust, mold spores, allergens, and bacteria. What are the types of filters in the HVAC system? Spun Fiberglass Filters. Most filters made for HVAC systems are disposable, which means they have to be replaced once they become too soiled.Pleated Air Filters. When it comes to filtration performance, it’s all about maximizing the surface area of the filter media.HEPA Fi...