Fans for cooling the helmets

[hartkasprops]

Hey guys I was wondering what type of fan should I get for the helmets?

 

[Serin]

I'd go with something by Noctua, like the 40mm NF-A4x10 FLX 4500RPM model.
Never had a single return on them when I worked at a PCCG.

That said, if you can find some with a lower dBl I'd be getting them instead.

 

[hartkasprops]

Alright I'll check into it. Thanks.