Furnace Filter Air Flow Rating

Turn off you hvac system while you are changing your air filter.

Furnace filter air flow rating.

Furnace manufacturers prefer the traditional spun fiberglass ac filters merv 2. When faced with filter pressure drops psc motors will maintain less airflow but use the same amount of energy. The higher the rating of the filter is the smaller the particles that it will capture as well as the higher the percentage of particles captured. The arrow should always point in the direction the air is.

This static charge makes them better at catching small particles that pass through them. Remember any heating or cooling system that uses a fan to distr. Whether you have a psc or ecm blower motor has implications on airflow. There is both disposable and washable electrostatic filters with washable the most.

Ever wonder which way the arrow should point on your furnace air filter find out right here. The merv rating has an indirect impact on airflow. When changing furnace filters many people wonder where the arrow of the filter should point towards. The smaller pores in more highly rated air filters create resistance to air flow and if the filter is used in an hvac system that is not designed to handle this resistance it can lower the system s efficiency decrease indoor air quality and.

It removes more contaminants from the air but it means that your furnace or air conditioner has to work harder to push the air through your home. Low efficiency filters typically lie within merv 1 4 and high efficiency filters are merv 13 and beyond. As a result it enhances airflow reduces energy consumption and lowers maintenance costs. The difference between a merv 6 and a merv 8 is nearly double in the percentage of particles captured.

Ecms will maintain the same airflow but. A higher merv rating means the filter is more restrictive. With the correct merv rating and a pleated design this furnace filter improves the efficiency of your hvac system. These filter out enough of the large particles to protect the furnace while providing maximum airflow.

Generally filters with higher merv values will have less airflow. Using an air filter with a merv rating higher than what your furnace or air conditioner manufacturer recommends can actually impair its performance. Merv rating 8 12 electrostatic filters clean the air since they become positively charged from static electricity. Furnace filter manufacturers capitalizing on tighter home construction and homeowners desire for clean indoor air market filters labeled better and best which focus on indoor air quality.

The minimum efficiency reporting value merv scale goes from 1 to 16. The scaling of merv is not linear. Some of these best filters can remove particles as small as 0 3 microns which make them hepa standard compliant. The efficiency of the air filter.

Ratings for filters. Most residential filters range from 4 to 12.