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Pressing the middle button at the top of the screen will take the user to the Integrated Filtration System Page. This page
is for setting the interval time for laboratory personnel to change their filters. Standards particulate air filters and
Potassium Permanganate filters require different change intervals, which will be specific for laboratory use. Reference
section 7.1.2 for how to check potassium permanganate filters. Potassium permanganate filters are used on units with
optional recirculation fans.
Units built with the Recirculation option will have an additional icon at the top of the page for adjusting the Recirculation
Fans. Recirculation fans can be turned ON by pressing the power button and adjusting the fan speeds by adjusting up or
down with the arrows. Recirculation fans can run at higher speeds that will emit a higher noise level.
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