First off, static pressure won't specifically be helpful if you are PULLING air through those dust filters. CFM and overall airflow would be more important for that. Static pressure is helpful/necessary when you are trying to PUSH air through a restriction. That being said, very high static pressure fans are usually both high static pressure AND high airflow, although there are some models with high static pressure that don't specifically move a lot of CFMs compared to some other models.
Besides which, if they are intake fans, you usually want decent static pressure specs anyhow, especially but not only if you are pushing through a radiator. Also, same goes for any fan mounted on a CPU cooler heatsink.
Does you case support front dual 140mm fans?
If not, then these are probably the best non-Delta fans you can get that are very high static pressure, practically bar none. They are also fairly quiet considering the amount of air they move and their incredibly high static pressure ratings. They are even quieter if you tailor your fan curve properly using a custom profile configured to accomodate the fact that it's unlikely they will need to run at more than half speed, almost ever, but if they are needed to, can. I'd probably recommend that they not run at more than about 40% of total RPM at temps below 60°C but quickly ramp up after that.
Chances are good, and use of these in the past bears this out, that they will be unlikely to ever need to run at or near full RPM because as soon as they start really moving, things cool down in a hurry. Plus, with their higher static pressure they actually put the air where it needs to go instead of bogging down or micro-stalling, or just pushing air out the sides of the fan blades.
PCPartPicker part list /
Price breakdown by merchant
Case Fan: Noctua - NF-F12 industrialPPC-3000 PWM 109.9 CFM 120mm Fan (£22.99 @ Overclockers.co.uk)
Case Fan: Noctua - NF-F12 industrialPPC-3000 PWM 109.9 CFM 120mm Fan (£22.99 @ Overclockers.co.uk)
Total: £45.98
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-02-12 22:09 GMT+0000