Pleated air filters can restrict airflow to some extent due to their denser construction and larger surface area. The pleats create more resistance for the air to pass through, which can potentially reduce the efficiency of your HVAC system.
FIBERGLASS FILTERS ARE ALMOST WORTHLESS. HVAC PEOPLE RECOMMEND THEM BECAUSE OF LOW AIR RESISTANCE. PLEATED FILTERS ARE MUCH BETTER BUT STAY AWAY FROM ANYTHING WITH A MERV RATING HIGHER THAN 8. THEY ARE TOO AIR RESTRICTIVE AND CAN CAUSE PROBLEMS WITH A/C COILS ICING UP OR HEAT EXCHANGERS BURNING UP.
A pleated filter is made up of different sizes, and readily captures pathogens as small as 0.3 microns, filtering out even the tiniest of bacteria. They are overall more effective in capturing very tiny particles than non-pleated air filters; 99.97% of airborne particles are trapped with a pleated air filter.
HVAC professionals say MERV 8 is the highest you should go. Filters are there to protect the equipment not you. The higher the MERV rating the harder the furnace has to work. 1/2x a year change the filter unless you have pets then change 3/4x a year.
Fiberglass filters shield HVAC systems by capturing bigger debris but are less effective at filtering small particles. If you're looking to reduce allergies, pleated filters are recommended. Pleated filters are better at improving indoor air quality and may cost a little bit more, but they have higher MERV ratings.
Yes, fiberglass filters are safe. However, they are not as durable as pleated filters and if they are not replaced frequently, they run the risk of falling apart and damaging your HVAC unit.
Pleating the filter media allows more media contained within the filter frame. More media means more surface area to capture and hold particles. The capacity to hold more dust makes the pleated filters last longer than fiberglass filters.
In most cases, a MERV 11 air filter isn't too high for residential use. Generally speaking, anything under a MERV 13 air filter should provide very efficient air purification in a home without impacting airflow.
Pleated air filters are considered to be superior at filtering compared to fiberglass air filters. They are made of a polyester or cotton material that catches smaller air particles, but it also has higher airflow resistance.
Carrier's fiberglass furnace filters should be changed every 30 days. Their pleated furnace filters can last anywhere from 3 months up to a year.
Home air filter recommendations
Hog Hair Air Filters – These washable air filters are more efficient and longer-lasting than fiberglass filters. They also do not restrict the airflow to your system like 1-inch pleated filters.
As you can see, there are several key differences between cheap and expensive air filters. Cheap air filters don't last as long, are less efficient at trapping particles, and have a smaller surface area to filter. This can lead to poor indoor air quality and increased health risks.
If not properly managed, high MERV filters can cause increased pressure drop, leading to overheating and potential damage to the heat exchanger and motor.
Due to their larger surface area, pleated filters are better at trapping particles like dust, pollen, and pet dander. They improve air quality and reduce strain on your HVAC system. Non-pleated filters are cheaper but less effective at capturing smaller particles.
A higher rating means that the filter can trap smaller air particles. While you may automatically think that a higher MERV rating means a better air filter, that's not always the case. Higher MERV ratings aren't always necessary and can decrease your unit's efficiency.
The danger of not changing the air filter in the house for a long time is that it will eventually lead to furnace damage. This means that the entire system will get destroyed by the excess heat. Replacing the entire system can cost you enormous amounts of money, and it's almost the same as buying a new HVAC unit.
So, how does furnace filter size matter? Like this: Larger area for catching debris: 5-inch air filters offer a thick surface area of accordion-shaped material to catch all the dirt you want to keep away from your family. For cleaner air, the thicker filter provides less debris slipping through the cracks.
MERV‑8 filters are among the most popular choices because they strike a balance between performance and adaptability, fitting most systems without modifications. However, it's worth noting that filters with higher MERV ratings can restrict airflow.
The MERV 11 air filter is the wrong choice for people who do not own pets and do not have any breathing trouble; this is because it can lead to restricted airflow. Air filters with higher ratings can also have negative effects on HVAC components.
Many New Jersey homeowners ask us about MERV ratings, especially when it comes to choosing between MERV 8 and MERV 11 air filters. Here's what we tell them: Think of MERV 8 filters as a “good” option, and MERV 11 filters as the “better” option for normal residential use.
Pleated vs non-pleated air filters tend to greatly restrict air flow due to density of material they are made of. They tend to increase energy consumption and can skyrocket your energy bill. Pleated air filters might also require you to modify your HVAC system in order to accommodate them.
Pleated air filters can restrict airflow to some extent due to their denser construction and larger surface area. The pleats create more resistance for the air to pass through, which can potentially reduce the efficiency of your HVAC system.
Initial unladen performance of pleated filters is marginally better than foam equivalents, however as particles begin to build up between the pleat pack recesses, this blocks up the potential flow area – thus reducing performance.