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Last Updated on January 17, 2022

MERV 13 Home Air Filter

The MERV 13 air filter is a highly efficient replacement for return air grille applications. It doesn’t require modification to fit a standard 1-inch return air filter grille. The 3-inch deep pleated filter has a longer life expectancy than a regular filter—up to six times longer—and filters air with greater efficiency than the older 1-inch deep filter.
You can breathe easier knowing the MERV 13 Zephyr Filtration air filter will keep allergens out of your home while providing better filtration than traditional filters. We believe this product will be one of the best investments you make toward improving your health and well-being!

Table of Contents

What Is the MERV Air Filter Rating System?

MERV stands for Minimum Efficiency Reporting Value, and the rating system measures an air filter’s efficiency based on the size of particles captured. Developed by the American Society of Heating, Refrigeration and Air Conditioner Engineers (ASHRAE), the MERV rating is something everyone should be looking at when replacing their air filter.

The best air filter will have a MERV rating of 20, capturing small particles—less than 0.3 microns—such as bacteria, tobacco smoke and microscopic allergens. The lowest rating of MERV 1 will catch only 20% of larger particles—around 3 to 10 microns, such as dust and pollen. For reference, viruses are 0.01 microns or less.

An air filter rated MERV 8 will catch 85% of larger particles such as pollen, dust mites and mold spores. And, it will capture around 50% of smaller spores such as aerosols that can be irritating if not bad for your health. MERV 8 air filters were the minimum recommendation for home air filtration systems until recently.

Now, MERV 13 air filters are the new standard. They catch 90% of larger particles and over 70% of smaller particles, including airborne viruses and bacteria.

Are You Confused About MERV Ratings? The options may seem daunting at first—with different filter types and various MERV ratings, but don’t worry because we’ve made it easy.
Learn all about MERV and why it’s essential when choosing air filters →

3inch MERV13 Home Air Filter

Product Highlights

Zephyr MERV 13 Air Filter

  • Best in class solution for your filtration needs
  • Low static pressure
  • Lasts up to six months or longer
  • Foam gasket ensures a complete seal

Does Airflow Matter?

The higher the MERV rating, the more efficient the filter is at catching small particles. However, it reduces the amount of air that can pass through the filter.

Imagine breathing through a face mask—it can be difficult at times. Now, double or triple the thickness of the mask and it becomes extremely difficult, requiring far more effort to take in air. Well, that is exactly how works with HVAC systems. They are designed to accommodate a certain amount of resistance—or static pressure—and if you increase that too much, the system will struggle to operate.

The best air filter is one that captures most contaminants but allows air to flow freely. That is why the Zephyr Filtration MERV 13 air filter is the optimum choice for replacement return air grill filters. Its low static pressure means that air passes through easily while collecting the spores and aerosols that can lead to sickness.

Are Your Home Air Filters Restricting Airflow? Indoor air quality can be ruined by the filters in your home, and it’s important to know how they affect airflow. A dirty or inefficient filter will reduce circulation while overly efficient ones might actually cause more problems than they solve—like over heating! You can learn more here →

The Zephyr Filtration MERV 13 Air Filter

For HVAC contractors, the Zephyr Filtration MERV 13 air filter provides solutions to many of the problems faced when replacing filters or installing new systems.

  • Low static pressure equals zero strain on the system.
  • It fits most standard 1” thick air return grilles, eliminating the need for expensive modifications.
  • It’s long-lasting (six months or more) reducing the frequency of callouts. This follows biannual preventive maintenance schedules.
  • The adhesive faced foam gasket provides a complete seal to ensure all the air goes through the filter, not around the sides.

The California Building Energy Efficiency Standards were introduced to ensure new and existing buildings achieve a good energy efficiency rating. The Zephyr Filtration MERV 13 air filter is fully compliant with Title 24, making it the top choice among professionals.

Frequently Asked Questions

Can I use a MERV 13 filter in my home?

The short answer is that you can usually use a MERV 13 filter in your home. However, it will depend on the condition and performance of any existing HVAC system. If filtration is already a struggle due to an old and/or poorly functioning unit, then purchasing high-grade filters may not help resolve these issues. So, before purchasing or installing any new filters be sure to consult a local IAQ expert. Find a Local Professional →

Will MERV 13 hurt my air conditioner?

The short answer is that it can, but high-efficiency air filters are still a much better option for your HVAC system. MERV 13+ air filters work with most modern systems without any issues or problems under normal circumstances. If you notice any change in performance after installation, like decreased airflow or the system keeps shutting off, stop use immediately and consult a local professional.