Frequently Asked Questions > FAQ's > How long do the brushes last?

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Brushes have a very long useful life — at least several years under ordinary use, even without adjustment.

Brush systems are very effective at screen cleaning; therefore, they are generally only run for a couple minutes every few hours.  Some installations have been using the same brushes since 1996!

The forward and reversing action of the brush cleaning system reduces brush “memory.”

Brushes are adjustible and can be replaced if necessary.  ISI recommends that brushes be periodically inspected, at least annually, for wear.