PC case dust filter?

Hello.

I'm thinking about buying the NZXT H6 Flow (without RGB) case.

However, it doesn't have a dust filter… which makes me think twice about buying it.

Is it a problem if there's no dust filter? I mean, you clean your computer regularly anyway.

My friend has the Bequiet Pure Base 500 DX, and it has dust filters everywhere. But do they really help?

I find the NZXT H6 Flow really appealing.