Fiberglass vs Pleated Air Filters

Air is important for everyone, but in today’s world, its quality is decreasing, which is harming all living organisms, including humans. So with the decline of outside air quality, indoor air quality is also decreasing. Tackling this issue is very important. This is the reason humans have created air filters that purify the air full of contaminants in your home. Air filters are a medium between the air and the HVAC (heating, ventilation, and air conditioning) system. These filters are available in many types, like fiberglass and pleated filters.

When buying a filter, there are other things to be considered like what is the cost? Will it be compatible with your HVAC system? If these questions are coming into your mind, then don’t worry because luck is with you today. In this blog, you will learn about the two most used residential air filters (fiberglass and pleated filters), their advantages and disadvantages, and make the decision which is better for you. So make sure that you read carefully.

What Are Fiberglass Air Filters?

Fiberglass filters get their name because they are made of fiberglass materials like spun glass or non-woven glass, and these filters are also known as disposable or thrown away filters. The spun glass is made with silica, lime, and sodium, which are molten together and blown to make glass threads, and it is very fragile. Non-woven fiberglass is made with the help of a high-pressure jet of water, which brings and entangles the fiber together. Both of these materials are fragile, so a fiberglass filter is a delicate thing. It has a MERV rating from 1 to 4, which means they are good for residential uses and provide decent filtration. Here are some advantages and disadvantages of fiberglass filters:

Advantages

  • Budget-Friendly: One of the key advantages of fiberglass filters is that they are very budget-friendly. You can purchase them from any hardware store for just between $3 and $5.
  • Availability: Fiberglass filters are easily available at most hardware stores, so you can purchase them when your old filter needs a replacement.
  • Airflow: Using a fiberglass filter for your HVAC system can be beneficial in terms of airflow. These filters let the air pass through them easily, and due to this, your HVAC unit works properly.
  • Eliminates Large Particles: The efficiency of eliminating large airborne particles from the air is the main benefit of a fiberglass filter. So these filters are suited for those who want decent filtration in their home.

Disadvantages 

  • MERV Ratings: Fiberglass filters have a MERV rating between 1 and 4, and this is very low according to experts. So it may not provide the efficient filtration that you want.
  • Lifespan: The life of fiberglass filters is very short and you can use these filters only for 30 days. This is one of the main disadvantages because you will be replacing your filters more often.
  • Low Quality: The materials that are used to make fiberglass filters are very low quality; that's the reason they have a chance of getting damaged easily, which can cause problems for your HVAC system.
  • Filtration Capacity: These filters use media of panel style, and due to this, these filters have a small surface, which doesn’t let them eliminate huge amounts of airborne particles.

What Are Pleated Air Filters?

Pleated filters got their name because they are made with paper or cloth that is folded or pleated in a small series of pleats, and this helps to increase their surface area of filtration, which increases their efficiency. The materials that are mostly used to make these filters are polypropylene, polyester, and nylon. Polypropylene, also known as PP, is a thermoplastic that is stress-resistant and has low density. Nylon and polyester are both types of fabric that are used to make pleated filters because of their durability. The MERV ratings of pleated filters range between 8 and 13, which makes them best for residential purposes. Here are some advantages and disadvantages of Pleated AIR filters:

Advantages

  • Filtration Capacity: Pleated filters have a large surface area for filtration, and this capacity to remove contaminants from the air also increases. So these filters are best for houses that have high amounts of airborne particles.
  • Lifespan: The life of pleated filters is around 3 months or 90 days. Because of their longer lifespan, these filters will purify your home efficiently for a long time. But the life of a pleated filter depends on the condition of the house too. If your house is full of dust and debris, these filters’s lives may end sooner than expected.
  • High Quality: The materials used to make pleated filters are very high-quality media of synthetics and frames of sturdy die-cut. These materials are solid and not vulnerable, even in harsh conditions like high humidity levels.
  • MERV Ratings: Pleated filters have MERV ratings between 8 and 13, which means they effectively capture small particles. The contaminants of size 1 micron or more are eliminated by these filters.

Disadvantages

  • Cost: In the matter of cost, the pleated filters may not come as budget-friendly options for many individuals. The price of these filters ranges between $5 and $15, and this price can be expensive for some people.
  • Airflow: The pleated filter’s design is very dense because the materials that are used to make them are dense (cotton or polyester). Airflow can be restricted with thick materials, and that can make your HVAC system work hard.
  • Compatibility: People who want to use a pleated filter should know that a normal HVAC system that can handle low MERV rating filters can’t support a pleated filter. The design and airflow restriction of these filters needed a good-quality HVAC unit to handle them.
  • Potential Release of VOCs: When you use a pleated filter, there is a risk of releasing VOCs (volatile organic compounds) into your house by these filters, and that can cause you or people inside your home short- or long-term health issues.
Fiberglass vs. Pleated Air Filters

Comparison: Fiberglass vs. Pleated Air Filters

Pleated filters and fiberglass filters both have some advantages and disadvantages, but the main question is who is superior? Well, you are about to learn the differences between these two filters. Here is the comparison of fiberglass and pleated filters:

Features Fiberglass Filters Pleated Filters Result
Filtration Ability Fiberglass filters can clean only large-sized particles of size more than 10 microns and are inefficient in eliminating small-sized particles like pollen, dust mites, mold spores, etc. Pleated filters can remove both large and small particles effectively and capture particles of size between 1.0 and 10 microns, including pollen, mold spores, dust mites, etc. Pleated Filters Win
Cost The cost of fiberglass filters is quite low. Its price ranges between $1 and $5. This makes it a budget-friendly option. The cost of pleated filters can be expensive for many individuals because their price ranges between $5 and $15. Fiberglass Filters Win
Lifespan The life of fiberglass filters is very short. These filters only last for 30 days and sometimes even less. The lifespan of pleated filters is quite good. These filters can last up to 90 days or 3 months, depending on the user’s indoor condition. Pleated Filters Win
Availability Fiberglass filters are easily available on the market and can be found in most of the local hardware stores. Pleated filters are available in most of the local hardware stores, which makes them easy to purchase. Draw
MERV Ratings The MERV ratings of fiberglass filters are low. It ranges between 1 and 4. MERV ratings of pleated filters are quite high, and they range between 8 and 13. Pleated Filters Win
Airflow The design of fiberglass filters provides good airflow to the HVAC system. Pleated filters have a denser design that restricts the airflow, and this can make the HVAC system work harder. Fiberglass Filters Win
Compatibility The fiberglass filters are compatible with most of the normal HVAC systems. Pleated filters require a good-quality HVAC system that handles its airflow rates, so they are not compatible with normal HVAC systems. Fiberglass Filters Win
Maintenance Frequency The maintenance frequency of fiberglass filters is high because they need frequent new replacements. Pleated filters don’t require much maintenance because of their longevity and require few replacements per year. Pleated Filters Win

What Should I Look Before Buying A Filter?

When the matter comes to which air filter will suit you best, then you should consider some important things before choosing fiberglass filters or pleated filters. Here are some of the main key points that will help you identify which air filter is right for you:

Air Quality

Considering the condition of indoor air is important because if your house has extremely poor air quality, then a normal filter with low MERV ratings will be inefficient at removing dust. Individuals who have a clean environment in their homes and do not require any advanced purification should invest in fiberglass filters. If your indoor air quality is poor and you want exceptional filtration, then you should buy a pleated filter for your house.

Budget

Budget is also a crucial thing that you should look for before buying an air filter. Pleated filters are pretty expensive compared to fiberglass filters, and they have a price difference of 5 to 10 dollars, which may be expensive for some people. So if an individual wants to purify air in their home with decent filtration ability, they should go for a fiberglass filter. People who want efficiently clean air and a budget have no problem and must go for plated filters.

Health Concerns

Your health is one of the main things that can be affected by an air filter. People with respiratory conditions like asthma or allergies caused by contaminants like pollen allergy need effective filtration in their houses. Filters with dense materials like pleated filters can eliminate particles like pollen, dust mites, mold spores, etc. that can cause breathing issues. So, having a pleated filter is a great idea instead of investing in fiberglass filters that are useless when you have medical issues related to poor air. Remember, you should buy those pleated filters that don’t release any VOCs.

Consider your budget, air quality needs, and health issue preferences to choose the right air filter.

Buy Custom Size Air Filters

Conclusion

Air filters become an important part of everyone’s life because they help to purify the air inside your house. Many filters are available in the market, but mainly two filters are used in residential places like houses. Fiberglass and pleated filters are the best types of filters that you can use to keep your home air clean. Fiberglass filters are budget-friendly but provide air purification from large airborne particles only, and on the other hand, pleated filters are a little expensive but efficiently eliminate small contaminants and large ones. Both of these filters have advantages and disadvantages.

Before choosing between fiberglass filters and pleated filters, you should consider some key points. Budget is one of the main things that many people consider before investing in anything, and it applies to filters too. Any kind of health issues related to poor air quality also need to be considered before buying an air filter. The main question is where you will find a suitable filter for you and your HVAC system. Well, if you are here, then you are a lucky person because here at Custom Filters Direct we are known for providing filters with MERV ratings of 8, 11, and 13, which fulfill the need for clean air for our customers. For more details, contact us at (877) 812-7983.

Frequently Asked Questions

Are Fiberglass Filters Better Than Pleated Filters?
No, if you look at the overall features of both of these filters, then the pleated filters will come out as superior. Fiberglass filters are poor at eliminating small-size particles and have a very short life of 30 days compared to pleated filters, which are efficient at removing small airborne particles like mold spores, pollen, etc., and have a lifespan of 90 days or 3 months.
Will Pleated Filters Help Me With Allergies?
Yes, pleated filters are effective at removing small particles that can cause allergies, such as pollen, dust mites, mold spores, and other allergens. These filters are efficient because of their design, which is made of clothes or paper that is folded or pleated in a series of small pleats. This makes them denser and provides filtration ability to small contaminants.
Can Fiberglass Filters Damage My HVAC Unit?
Yes, fiberglass filters may cause damage to your HVAC system if you don’t change them regularly. These filters have a short life, which leads to frequent replacement of the filter, so not changing them can cause clogging, which will make the components of your system work harder and may cause unnecessary damage. Fiberglass filters are very vulnerable, so you should inspect them for any damages every week.
Can Pleated Filters Affect My Energy Bills?
Yes, the pleated filters may affect your energy bills because these filters restrict airflow, and this can cause your HVAC unit to work more, which will increase the consumption of energy. To keep your energy bills at a limit, you should change your pleated filter when it gets old; otherwise, it will restrict airflow more and bills will increase continuously.
Which Filter Will Get Dirty Quickly, Pleated Or Fiberglass?
When the matter comes to which filter will be filled with soon, fiberglass filters lose the match. Fiberglass filters are made for disposal and require regular replacement because they become dirty in under 30 days only. In some cases, it will get dirty sooner if the filter user has a very dusty home or lives with pets, which decreases the quality of air more.
Are Fiberglass Filters Durable?
No, the fiberglass filters are not durable and are for short-term use. The materials that are used to make these filters are spun glass or woven glass; both of them have a very short life. The fiberglass filters are fragile, which means they can get damaged very easily; this may lead to improper filtration or cause damage to your HVAC system.
Should I Worry About VOCs That Are Released By Pleated Filters?
Yes, you should worry about VOCs (volatile organic compounds) because these gases are very harmful to you and can cause short- or long-term health problems. These compounds may lead to cancer-like dangerous problems too. So it is wise to check your pleated filter that it releases VOCs or not before purchasing because, as the old people said, health is wealth.
How often should I change each type of filter?
The time of changing each type of air filter is different from each other. For example, a fiberglass filter that is made of media of spun or woven glass needs to be changed every 30 days or less sometimes, and on the other hand, pleated filters are made of durable materials like nylon or polypropylene; due to this, they require to be changed every 3 to 6 months.
Can I use both types of filters in my HVAC system?
Yes, you can use both fiberglass and pleated filters in your home, but you should decide where you require a pleated and where you need a fiberglass filter. A simple suggestion is that you should pleated filter where you live most of the time in your house and put fiberglass filters on the places where you spend less time.

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