HVAC air filters help maintain indoor air quality by trapping indoor air pollutants, including dust, pollen and allergens, and are supposed to be replaced every three months. Air filters come in many forms, though they can be categorized into two main ones: disposable and reusable. In today’s post, HVAC installation company Sherrell Air Conditioning & Heating discusses the differences between them.
Reusable Air Filters
Reusable air filters–also known as washable air filters–are made with media (the material that traps impurities in the air) that can be washed and used more than once. They offer several advantages, such as savings and the convenience of not having to buy new ones every time the old one gets clogged. They also help reduce waste that eventually ends up in landfills.
Despite these benefits, reusable air filters aren’t without drawbacks, the chief of which is that they can only be efficient up to a certain point. Air filter efficiency is rated with MERV (minimum efficiency reporting value) ratings. The higher the rating, the better it is at trapping impurities. Reusable air filters rank between one and four on this scale at best, while high-efficiency disposable ones can rank over 14. Also, reusable air filters need to be properly cleaned and dried before reinstallation because a damp filter will encourage mold and bacterial growth.
Disposable Air Filters
Many heating service contractors swear by disposable air filters because they have certain advantages, such as high MERV ratings, depending on the product. High-efficiency air filters can prevent much smaller particles like microbes and viruses, a feature that’s risen in demand in the past several months due to COVID-19. Upgrading to a more efficient air filter is as simple as ordering one online.
Like their reusable counterparts, disposable air filters also have drawbacks. They’re not one-size-fits-all, which means you have to know the right size when buying a replacement. The wrong size can result in leaks, which will defeat the purpose of having an air filter in the first place. Buying replacement air filters every three months can also cut into your budget. Before making a decision, make sure to weigh all these factors, keeping in mind that it works differently for every household.
Sherrell Air Conditioning & Heating is your leading provider of air conditioning repair and installation services. Give us a call at (972) 216-1961 or (713) 595-4986. You can also fill out our contact form to schedule an appointment.