Categories
HVAC Tips

Air Filters and MERV Ratings

Air moving through most any building has to pass through an air filter. Most air filters will capture larger particles. Some filters catch the smaller particles, but not all. Your air filter alone can improve the quality of air you breathe.

air filter

The MERV (Minimum Efficiency Reporting Value) rating of a filter tells you a lot about how well it’s going to filter your air. The higher the MERV rating, the more it filters your air.

Homes, commercial buildings and in hospitals generally have MERV 16 and below filters. Operating rooms and anywhere that requires a completely sterile environment use MERV 17-20.

Your first thought may be that you want a filter with the highest possible MERV rating, but that’s not always the best answer. Furnaces and air handlers have a recommended MERV rating, however, HVAC systems are only built to handle a certain amount of air flow resistance. The higher the MERV rating, the more difficult it becomes to push air through the filter.

Air Quality

Utilizing a filter with the highest MERV rating that your system is rated for will improve your air quality.

Beyond that an air cleaner, an air purifier or a UV light will help you achieve your air quality goals.

We have a wide range of products to help you achieve these goals. Room air purifiers are a good start, but a whole house air purification system will work a lot better than anything free standing. Check out our air quality products! We have REME Halo, AprilAire, Amana, American Standard and Garrison products. Typically, these products are installed on your furnace or air handler.

Give us a call at 770-672-6963 to learn more about these products.