Air filter made with fibreglass is it safe?

Author: Steve

May. 13, 2024

Air filter made with fibreglass is it safe?

Seems like your question wasn't clearly phrased. Based on the responses, it seems you're asking if it's dangerous.

And it isn't dangerous, as they are made of long fibres that aren't loose. The real hazard comes from fibreglass dust. That said, they are not very efficient as filters. A paper filter can capture much more dust.

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Guide To Choose Ideal Air Filters For Your Home's HVAC System

To maintain the air quality inside your home, the air filters of your HVAC system serve as the first line of defense. Their primary purpose is to capture pollen, germs, dirt, and dust particles before air circulates throughout the house. Additionally, they protect the internal components of the HVAC system, keeping them clean and functioning smoothly.

However, choosing the most suitable air filters for your specific HVAC system from the many available options can be challenging. Opting for the "cheapest one" isn't always the best decision.

To make this task easier, we can help you select an air filter that enhances the efficiency and performance of your HVAC system. Let's get started.

Getting Knowledgeable About the Types of Air Filters

There are various types of air filters on the market. Understanding these filter types can help you decide which is best for your individual HVAC system, aiding you in making an informed decision.

Pleated Air Filters

Pleated filters are folded, similar to an accordion, to maximize the surface area available for trapping particles. These filters are moderately thick and are usually made of a cotton-polyester blend or specialized synthetic material. They are an excellent option for those looking to improve indoor air quality.

Pleated filters generally offer a larger surface area than other filter types. Their density allows them to capture small dust particles and contaminants like pollen, mold spores, and pet dander. These disposable filters are also long-lasting.

Flat Panel Air Filters

Flat-panel filters have a flat cardboard frame, as the name suggests. These filters use fibrous materials such as polyester, fibreglass, or other efficient synthetic materials. While budget-friendly, flat-panel filters are less efficient than pleated filters, primarily targeting larger debris and dirt particles.

The 1-inch disposable fibreglass filters aren't effective at trapping small, harmful contaminants but are commonly found in HVAC systems. Synthetic material air filters are somewhat more efficient, being thicker and better at improving air quality. If you find flat-panel filters in your HVAC system, we recommend replacing them with more efficient ones.

Washable Air Filters

At first glance, washable filters seem like a practical option because they don't need frequent replacement. Choosing these custom air filters can also be an ecological choice, but they are less efficient and get dirty quickly. Frequent washing can lead to mildew and bacteria buildup, eventually necessitating replacement.

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HEPA Filters (High-Efficiency Particulate Air)

High-Efficiency Particulate Air Filters can capture approximately 99.97% of particles that are 0.3 microns or larger, including smoke particles, bacteria, and viruses. While this makes them highly effective, their density can significantly slow down airflow, potentially damaging HVAC systems without sufficiently powerful fans or motors that can force air through these filters.

Depending on your HVAC system, consult a professional to determine if a HEPA filter is appropriate for your home system.

Check Air Filter’s MERV (Minimum Efficiency Reporting Value) Rating

Once you've chosen the type of air filter suitable for your HVAC system, the next step is to determine the filter's trapping efficiency, best understood by checking its MERV ratings. This rating measures the filter's ability to capture particles of different sizes, ranging from 1 to 20. A higher rating indicates higher efficiency.

MERV in the Range of 1 to 4

Filters in this range offer minimal filtration, with fibreglass filters typically falling into this category. They clog quickly and require replacement every 1 to 3 months.

MERV in the Range of 5 to 8

The U.S. Environmental Protection Agency (EPA) considers filters with MERV ratings between 7 and 13 equivalent to HEPA filters. Filters within this range, particularly MERV 7 and 8, are a cost-effective option offering better performance than low-efficiency filters and long-term budget-friendly.

MERV in the Range of 9 to 12

Synthetic pleated air filters usually fall into this category, trapping around 95% of particles and being suitable for individuals with respiratory issues. These filters can last up to six months.

MERV Rating of 13 and Above

Filters in this range are the most efficient but can also restrict airflow, reducing your HVAC system's performance. Always consult a technician before choosing highly efficient filters.

Go Through The Manufacturer’s Recommended Filter Change Schedule

Manufacturers usually provide air filter care and change recommendations on the packaging based on filter type and home conditions. Factors that affect a filter's efficiency and change cycle include:

  • Filter type
  • Filter efficiency level
  • Frequency of A/C or furnace use
  • Indoor and outdoor air quality
  • Number of family members
  • Number of pets

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Selecting the right filters for your home can be challenging. At US Home Filter, we offer expert staff to help you with any questions. For assistance with your air filter needs, contact us online or call (855) 237-1673, and we'll help you choose the right filter for your individual needs. We aim to earn your business and guarantee your satisfaction! Enjoy our quality products, vast selection, low prices, and FREE SHIPPING on every air filter order within the Contiguous USA.

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