With so many options it can be overwhelming trying to decide what filter best suites your needs. Panel (basic) filters, usually 1" fiberglass filters, are the typical furnace filters installed in the ductwork of most home heating and/or air conditioning systems. These filters do little to remove contaminants from the air. The primary function of these filters is to protect the fan and minimize the amount of dust on the heating and cooling coil. They also can capture large particles from the air. High efficiency pleated filters have an electrostatic charge that is designed to capture small particles and allergens such as dust, pollen, mold, pet dander and smoke. These are the particles that make up 99% of your air, can aggravate allergies and asthma, and which contribute toward dust in your air and on your furniture. We have a large selection of these great filters in wide array of sizes. If you still aren't comfortable with choosing the filters that best suit your needs feel free to contact us.