What are the requirements for heat dissipation of a switch

To ensure efficient heat dissipation of a switch, the following requirements must be met:
-The air intake vents (at the front and the left side of the chassis) and air exhaust vents (at the rear of the chassis) are not blocked. The cabinet must have side panels to isolate the chassis from devices in other cabinets. The percentage of open area on the rear door must be larger than 50% to ensure good ventilation.
-Fans are running normally.
-The air filters are clean and not blocked so that air can enter the chassis.

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