FAQs

Replacement & Installation

How frequently should I replace my air filter?

It is generally recommended to replace your air filter every 90 days. However, if your household includes multiple pets, smokers, or experiences heavy use, you should inspect and possibly replace the filter more frequently. If you're upgrading from a lower MERV-rated filter or a fiberglass filter, it's a good idea to check the new filter after the first 30 days of use.

How do I replace my air filter?

To replace your air filter:

1. Locate your furnace or HVAC filter.
2. Turn off the HVAC system.
3. Note the airflow direction indicated on the old filter.
4. Carefully remove and dispose of the old filter.
5. Install the new filter with the arrows pointing in the same direction.
6. Record the installation date to keep track of replacement intervals.

Enjoy cleaner, healthier indoor air!

Sizing

What size filter do I need?

The nominal size (e.g., 20 x 20 x 1) is usually printed on the side of your current air filter. If your previous filter isn't available, measure the intake vent to determine the correct size.

  • Nominal size refers to the rounded dimensions used for product labeling.
  • Actual size is slightly smaller and reflects the precise measurements of the filter (e.g. 19.5" x 19.5" x 0.75'").

Most HVAC filters are labeled by their nominal size, which corresponds to standard intake vent dimensions.

Can I use your filters if I have a specific brand of air filter?

Yes! Our filters are compatible with most major brands. Just make sure to compare the exact dimensions of your current filter with ours before purchasing.

MERV Ratings

What does MERV mean?

MERV stands for Minimum Efficiency Reporting Value. It's a rating system developed by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) in 1987 to measure a filter's ability to trap airborne particles. The higher the MERV rating, the more effective the filter is at capturing smaller particles.

Is a MERV 13 filter right for me?

MERV 13 filters are highly effective at capturing a wide range of airborne particles, including allergens, bacteria, and smoke. However, they are also more restrictive to airflow. Before using a MERV 13 filter, it's best to consult your local HVAC technician to ensure your system can handle it without reducing performance.