What are my choices when it comes to filters?
Disposable filters are generally made of coarse fiberglass mats in a frame mounted on a filter rack. They are often referred to as “throwaway” filters. Very large particles are collected by straining, as they are too large to go through the openings in the filter. Particles are also deposited on strands of the filter when they come in direct contact with one another. The filter efficiency increases as it fills with particles, until it reaches the point of saturation and begins to lose as many particles as it gains. The disposable filter’s capability is limited to larger particles. Reusable foam or metal filters have slightly higher performance capabilities than disposable filters due to the use of the oils and adhesives applied to the filter to cause the particles to adhere to them. They are washable and must be recoated after washing to obtain their original efficiency for reuse. They are most effective on large particles. Electrostatic filters have a means for electrically charging t
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