MERVThe first thing you should consider before buying an air filter is its Minimum Efficiency Reporting Value (MERV) Rating. MERV ratings can let you know how effective an air filter will be at trapping particles of pollutants.
Fiberglass Air FiltersFiberglass filters are one of the most popular kinds. They’re usually blue, and can be found at hardware stores. They’re thin, flat panels with dense fibers. They have a very low MERV rating between 1 and 4. This means that fiberglass air filters can filter large dust particles from reaching your unit, but allow mold, pollen, and other small particles to pass through.
Pleated FiltersPleated filters are accordion-like folded sheets of cotton or polyester-blend fabric. They are accordion-shaped so they have more fabric surface. The more pleats, the more easily air can pass through the filter. This is a high-efficiency filter and won’t make your older HVAC unit work too hard. These kinds of air filters typically have an MERV value of 6 and up, which is great for people who have allergies. These filters are able to remove a lot of airborne pollutants that could harm you.
Disposable Electrostatic FiltersElectrostatic filters have MERV values of 10 and up, which means they’re great at removing pollutants from a home. They contain several layers of polyester-blended materials with a polyester mesh frame. These filters create their own static charge and can capture charged particles. These filters can trap mold, pollen, smoke, and pet dander. These filters can be expensive, but are great for people who have asthma or severe allergies.
If you have questions about the different kinds of air filters for your home, contact Griffin Heating and Air Conditioning today!