Air filters are essential for keeping your home's air clean and your HVAC system running efficiently. Not only do they remove dust allergens, mold spores, and other pollutants from the air your family breathes, but they also filter out fine dirt particles that can degrade the performance of the HVAC system itself. At its most basic function, an air filter removes impurities such as dust, pet dander, or even bacteria from the air that flows through the system. When it comes to air filters, there is a wide range of options available.
The thickness of the filter is an important factor to consider; the thicker the filter, the longer it will last. A 1-inch filter will clog with particulate matter much faster than a 4- or 5-inch filter. When looking at the packaging, check the manufacturer's recommended replacement dates. This will give you a good idea of the value of a thicker air filter.
No two air filters are exactly alike; they differ in quality and dimensions, and some have features that others don't. In most cases, we recommend using the filter that your HVAC manufacturer recommends matching with your system. By removing air pollutants (both chemical and environmental), your family will be able to breathe cleaner air every day and your electricity bills will also be lower because your HVAC unit won't have to work as hard. Air filters come in a variety of shapes and materials, each with different capacities and prices.
Media filters are very easy to maintain and ideal for filtering bacteria and other small airborne contaminants. They are cost-effective, disposable, and protect air conditioners and ovens from dirt. However, they provide low air filtration and are less resistant to airflow. Some HVAC systems aren't strong enough to push air through more restrictive filters that block smaller particles, that is, those with a higher MERV or CADR rating, which can reduce airflow and cause your home to heat and cool less efficiently. Scheduling a maintenance visit from a professional HVAC company can ensure that all of your home's filters only help your HVAC systems operate efficiently and don't detract from your home's indoor air quality.
If you really want to clean the air as it flows through your HVAC system, you should consider installing a whole-house air purifier or ultraviolet light that goes inside your HVAC unit. Regularly replacing your air filter is the best thing you can do to keep your HVAC system running. Air filters are important for everyone, but especially for those suffering from allergies or respiratory diseases such as asthma and hay fever. Even the slightest amount of moisture that remains can cause mold and mildew to form on the filter and expel them into the air you breathe.