2024-02-19
Filter Material-Different Types of Materials Used in HVAC Filters
Along with fiberglass, some HVAC filters are made of pleated cotton.They consist of the same cotton used in countless other everyday products. The cotton is pleated and formed into an HVAC filter for the purpose of air filtration.You might be surprised to learn that pleated cotton HVAC filters are even more effective at removing particulate matter from the air than fiberglass HVAC filters. On the Minimum Efficiency Reporting Value (MERV) scale, they have a rating of six to 13, compared to just three to four for that of fiberglass HVAC filters.Another advantage of pleated cotton HVAC filters is their ability to produce static electricity.Why is this important? When a pleated cotton HVAC filter produces static electricity, particulate matter will cling to it.With that said, pleated cotton HVAC filters are more expensive than fiberglass HVAC filters, and they usually have a shorter lifespan.