Best Residential Air Filters For Your Home

To figure out what size air filter you need, first, check the measurements on your current filter. Look on the frame of the filter for the size, usually written in big letters for nominal size and small letters for actual size.

If you don't have a filter or can't find the size, use a tape measure to determine the length, width, and depth of the space where the filter will go. If you can't find your size among standard options, consider using a custom tool to create a filter that fits your specific requirements perfectly.

MERV 11 filters are generally more effective for controlling allergies than MERV 8 filters. MERV 11 filters can capture smaller particles such as pollen, pet dander, and dust mites, which are common allergens. This makes them a better choice for improving indoor air quality for allergy sufferers. For a detailed comparison of MERV 8 and MERV 11 filters, check out our blog on MERV 8 vs MERV 11 Air Filters

First, turn off your HVAC system to ensure safety.

• Locate the air filter slot, usually near the air handler or furnace.
• Remove the cover or access panel to reach the filter.
• Take out the old filter by sliding it out of its slot.
• Check the direction of airflow indicated on the filter frame.
• Insert the new filter, making sure it fits snugly in the slot.
• Replace the cover or access panel securely.
• Turn your HVAC system back on.

Remember to change your air filter regularly according to manufacturer recommendations, typically every 1 to 3 months, depending on usage and filter type.

MERV, MPR, and FPR ratings are different ways to measure how well air filters work. MERV (Minimum Efficiency Reporting Value) shows how good a filter is at catching particles of different sizes, with higher numbers meaning better performance. MPR (Micro-Particle Performance Rating) rates a filter's ability to catch very small particles like dust and allergens. FPR (Filter Performance Rating) is a brand-specific system that rates overall filter performance. Each rating system measures filter effectiveness in its own way, so it's useful to know which one fits your needs best.

You should replace your air filter regularly to maintain good air quality and keep your HVAC system running smoothly.

Typically, it's recommended to replace your air filter every 1 to 3 months, depending on factors like the type of filter you use, your home's air quality, and how often you use your heating or cooling system. If you have pets or allergies, you may need to change it more frequently. Regularly replacing your air filter helps ensure proper airflow, reduces strain on your system and improves energy efficiency.

Running your furnace without an air filter is not a good idea. The filter catches dust and dirt, keeping these particles from getting into your furnace and causing damage. Without it, your furnace can get dirty and might need expensive repairs. Plus, without a filter, dust and allergens will spread through your home, affecting the air quality. To keep your furnace working well and your air clean, always use a properly installed air filter.

To measure your air filter accurately, take it out of your HVAC system and use a tape measure to check the length, width, and thickness. Measure from one edge to the other, rounding up to the nearest inch. If your filter has measurements printed on it, double-check them against your own measurements to make sure they match. This will help you get the right size when you need to buy a new filter.