While the highest MERV ratings are the most effective for air quality, they can harm your HVAC system. A higher MERV rating means a higher resistance, which means less airflow.Sep 20, 2019
Do some air filters restrict airflow?
All filters will restrict the air flow to some extent because, in every case, the air has to move through the filter for the unit to be able to remove the particles in the atmosphere. The higher the MERV rating, the denser the filter is going to be, and so the more restricted air flow will become.Nov 5, 2018
How does MERV rating affect airflow?
A higher MERV rating means a higher resistance, which means less airflow. When researching HVAC systems, airflow will come up a lot. That's because it's very important for the performance and longevity of your furnace or your air handler. Airflow is also the key to a comfortable home.Sep 20, 2019
When should I change my electrostatic air filter?
A good rule of thumb is to replace pleated filters every 90 days. If you have electrostatic or washable filters, they should be washed, dried, and re-installed once a month. The washable filters are more eco-friendly and, if cleaned and reused appropriately, can last 5 to 10 years.
How often do you clean an electrostatic filter?
Experts recommend cleaning them every two weeks to once a month at minimum. They only remove particulate matter: Electrostatic air filters reduce levels of particles in the air such as dust, pet dander and other allergens, yet they do not address harmful gases at all.
Are electrostatic air filters worth the money?
If you want to save money, time, and hassle of the air filtration of your home HVAC system, but don't mind a slightly higher upfront cost, an electrostatic filter is might be the right choice for you. But, if you suffer from allergies or asthma, Simply the Best HVAC recommends a HEPA filter.Sep 24, 2019
Are electrostatic air filters reusable?
Washable air filters, also known as electrostatic filters, are considered reusable or permanent since they are up to 10 times more efficient than standard disposable furnace filters.
What MERV rating is best for home use?
According to the ASHRAE, the best rating for residential HVAC systems is MERV 13. But before you upgrade your filter, make sure your specific system can accommodate that rating. A higher MERV rating often means lower airflow, which can cause the system to work harder—use more energy—to do its job.Mar 31, 2021
Is MERV 13 bad for HVAC?
Filters within a MERV rating of 17-20 are almost never necessary in a residential home. A MERV rating of 13-16 is considered hospital level air quality, so it is unlikely your home needs any more than that.Sep 20, 2019
Will MERV 8 filter pressure drop?
The higher the pressure drop the more restrictive the filter is to air flow. The lower the pressure drop the easier it is for air to flow through the filter. ... A 1” MERV 13 pleated filter has a pressure drop of around 0.27, and a 1” MERV 8 has a pressure drop of around 0.14.