H3C S7500E Series Installation Manual page 15

The S7506E-V provides two air filters. The one in front of the chassis is installed between the card
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section and power supply section, and the one at the back of the chassis is installed at the position
corresponding to the front air filter.
CAUTION:
Clean air filters periodically (at least once every three months) to guarantee adequate ventilation and heat
dissipation.
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