extractor fan...what does m3/h mean?

can anybody please tell me what m3/h means? my extractor fan runs at 467 m3/h can i get some input please? im growing in a 4x4x6(ft) and im wondering is this too powerful to be extracting air from my tent? cheers for help...

Cubic Meters/Hour

So 467 Cubic Meters is 16,345 cubic feet per hour...divide that by 60 minutes in an hour and you get about 272 cubic feet per minute...you're good in that tent.

If you're worried, get a speed controller or the fan

You're running about 235 cfm through your fan...

1 m3/h = 0.5885745 CFM

m3/h is cubic meter per hour