Extra ventilator-cooling for the M7100-24X?

DaneA,

Thank you for your response, much obliged!

No, the M7100-24X's (2x per 19 inch rack plus the Netgear 1GBe switch) will be placed on the office workspace, per floor.
(so a total of 48x 10GBe ports and 52x 1GBe ports but I do not expect all ports will be populated due to the new way of working in pandemic times)

As we are upgrading all workstations and servers plus whatever else has an ethernetport, to 10GBe where applicable.
So cooling (and heating) will be per regular typical office-space, no specific airconditioning is planned at this time. 

The 19 inch racks are the Rittal Rittal FB 7507.110 which is 9U's.

Here are some pictures;