What Type of Material Should be Used in an Air Filter for an HVAC System?

When it comes to air filters for HVAC systems, there are a few different materials to choose from. Fiberglass is the most common material used, but pleated filters and flat panel filters are also popular options. It is important to consider the MERV rating of the filter, as well as the type of air conditioning system you have, when selecting an air filter for your home. Fiberglass filters are composed of fine glass threads that are spun together to form a square or rectangular filter.

Pleated filters are similar to fiberglass filters, but they usually use a polyester cloth to perform the filtration. This type of filter has an accordion-like shape, which gives it a larger filtration surface area than flat filters and less resistance to airflow, making them last longer. Flat panel filters are constructed on a flat cardboard frame and use fibrous materials such as polyester, fiberglass, or other efficient synthetic materials. These filters are inexpensive but less efficient than pleated filters.

They are designed to trap larger debris and dirt particles and protect the internal components of the air conditioning system by keeping them clean and running smoothly. When selecting an air filter, it is important to check its MERV rating (Minimum Efficiency Reporting Value). This rating will indicate how effective the filter is at trapping particles from the air. Additionally, debris that enters through the ventilation grilles surrounding the filter can damage the air conditioning system, resulting in costly repair bills. HEPA filters are usually considered to be within the range of 7 to 13 on the MERV scale.

Stainless steel membrane filters work like industrial cloth filters and must be cleaned periodically with reverse compressed air jets. Washable filters may seem like a good option since they don't need to be changed frequently, but they must also be cleaned regularly for optimal performance. It is important to consider your air conditioning system when deciding if a HEPA filter is suitable for your home. Residential air conditioning offers many advantages such as air insurance, planned maintenance, heating and air conditioning selection guide, residential installations, Ironclad warranties, and home performance.

Cora Lecy
Cora Lecy

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