We buy our air filters with the expectation they will keep our families healthy, our buildings clean, and our factories running efficiently. To accomplish this, they must consistently remove particulate at their rated efficiencies.

Unfortunately, many studies have found that electrostatically-charged synthetic media rapidly loses its charge when exposed to our everyday air with the many combustion by-products from our cars, trucks, factories, and furnaces. Without the electrostatic charge, synthetic media will not perform as rated and we do not get the benefits we expect.

The only filtration media that has consistently been shown to be effective in real-world applications is high-loft microglass media that uses sub-micron fibers to mechanically remove particulate from our air. Johns Manville’s MICRO-AIRE™ has provides consistent performance in real-life applications. It does not rely on an elusive electrostatic charge that may not be there when you need it.

Many researchers have reported on the problems seen with charged synthetic media in real-life applications. Several of the papers are listed below. In addition, Johns Manville continues to fund independent research to conclusively demonstrate the extent of the problem.