Static and cartridge filters are used to clean indoor air and air being used in turbines and industrial processes. The industrial market has been growing faster than the commercial and residential markets and will comprise 62 percent of the total market in 2014, according to a study by the McIlvaine Company.
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Another growing application is offshore oil and gas, where ambient air is contaminated by sea salt and requires treatment prior to exposure to equipment and controls.
The metals industry includes some small applications, but most of this category is comprised of cabin air filters for automobiles. The electronics sector is divided into two main segments:
• Filters to protect the final product while in use; and
• Filters to protect the product during manufacture.
Filters are used to protect sensitive electronic equipment, such as disc drives. Semiconductor and flat panel manufacturers, for example, need ultrapure air surrounding their manufacturing processes.