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3,238 reviews at Trustpilot.3,238 reviews
B-Grade AcoustiFan: DustPROOF 70mm fan
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€11,18
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Acousti AcoustiFan: DustPROOF 70mm fan

AcoustiFan™ DustPROOF - Premium Quality Quiet 70mm Multi-Purpose Cooling Fan

The fan motor for the DustPROOF range of virtually silent fans is extremely quiet. The AcoustiFan™ DustPROOF series use the highest quality double-ball bearings available for reliability, use-anywhere inside a PC for extra long life expectancy (upgrade your PC and take these fans with you!). One of the unique features of these PC fans is that the motor has been completely sealed from the outside environment. This prevents dust entering the motor and also reduces the amount of noise perceived to be coming from the bearings within the motor.

Each DustPROOF™ quiet fan is also supplied with a unique 3-speed fan cable which offers maximum flexibility (3-pin or 4-pin Molex power connectors), along with the ability to select a fan speed suitable for your PC and noise sensitivity. The black connector will run your fan at full speed (12V), the blue connector will run the fan at medium speed (7.5V), and the white connector will run it at minimum speed (5V). However, if you opt for the white connector (minimum fan speed), be certain to design the airflow through your PC system carefully and monitor system and component temperatures. Acousti have even included four handy cable ties with each DustPROOF™ fan!

The DustPROOF™ quiet fans also incorporate an Auto Start safety feature. This feature is built into the fan’s PCB and automatically restarts the fan after the release of any obstacle which has prevented the blades from spinning.

For minimum possible noise, please consider using this fan with a 70mm AcoustiFan Gasket to dampen any remaining noise and vibration.


Reviews

  • (AcoustiFan™ DustPROOF)Virtual-Hideout.net

    “Easily the quietest I’ve tested (and I’ve seen and heard everything from Antecs to Sunons, YSTechs, Panaflos and even Radio Shack howlers). Up to this point, the Panaflo has been my favourite for noise, but this fan is much quieter.”

  • A True Review

    “AcoustiFan DustPROOF fans are incredibly quiet. With the ability to protect the motor from dust, they will certainly last longer, possibly making them worth the expense”

  • (AcoustiFan™ DustPROOF)Club Overclocker, Overall Rating 9.5/10

    “The fans felt solid and heavy compared to the stock fans I am replacing. AcoustiFan has designed these fans to last.”

  • (AcoustiFan™ DustPROOF)Legit Reviews

    “As far as performance, the DustPROOF fans I used both provided ample air flow, and without a doubt were much quieter than my cases stock fans.”

SpecificationsDustPROOF 70mm
Fan size (edge to edge)70 mm
Screw hole spacings60 mm
ManufacturerAcousti Products
ModelAFDP-7025B
Air volume at full speed (12V), CFM ±10%21.9
Noise level at full speed (12V), dB(A)20.0
Fan speed at full speed (12V), RPM ±10%2500
Air volume at reduced speed (7.5V), CFM ±10%14.0
Noise level at reduced speed (7.5V), dB(A)10.5
Fan speed at Medium Speed (7.5V), RPM ±10%1750
Power consumption, W0.96
Weight, g72
Approximate cable length, cm40
Ingress protection ratingIP55
Life expectancy @ 25°C continuous use6 years
Power connector3-pin, 4-pin (molex)
Bearing type2-Ball
Accessories3-Speed fan cable
Mounting hardware includedScrews
Fan depth25 mm
Rated voltage12 VDC
Warranty36 months
EAN barcode5060087740232
SpecificationsDustPROOF 70mm
Fan size (edge to edge)70 mm
Screw hole spacings60 mm
ManufacturerAcousti Products
ModelAFDP-7025B
Air volume at full speed (12V), CFM ±10%21.9
Noise level at full speed (12V), dB(A)20.0
Fan speed at full speed (12V), RPM ±10%2500
Air volume at reduced speed (7.5V), CFM ±10%14.0
Noise level at reduced speed (7.5V), dB(A)10.5
Fan speed at Medium Speed (7.5V), RPM ±10%1750
Power consumption, W0.96
Weight, g72
Approximate cable length, cm40
Ingress protection ratingIP55
Life expectancy @ 25°C continuous use6 years
Power connector3-pin, 4-pin (molex)
Bearing type2-Ball
Accessories3-Speed fan cable
Mounting hardware includedScrews
Fan depth25 mm
Rated voltage12 VDC
Warranty36 months
EAN barcode5060087740232

Customer Reviews

Great

,

I bought this fan to replace the fan on the stock AMD CPU cooler for my Athlon x4 640. The AMD PWM controlled fan was efficient but irritatingly noisy under load. The DustPROOF fan runs on full speed all the time and keeps the max temperature steady on 59 degrees Celsius under full load, over many hours. So the air flow is not as good as the AMD fan, but sufficient.

Even at full speed, this fan makes about the same noise as the AMD PWM fan at its 2-3 lowest RPM levels. The only downside is that the fan is not PWM controlled. The noise from my PC is now dominated by the PSU fan, while this CPU fan is slightly more noisy than the two ACE Frost pro cabinet fans, mostly because the sound is a bit higher in the frequency spectra. All in all a great fan for an acceptable price. On lower RPM this fan is very quiet.

FAQ

  • How do I measure fan size?

    The size of fan you need will generally be determined by the size of the fan fitting position in your PC case. The sizes of all the fans on our website are shown as measured along any one of the fan’s four sides, NOT the distance between the fan’s screw holes! Our most popular fan size is 120mm, followed by 80mm. This isn’t really dictated by customer preference, but more by recent designs of PC cases.

    As for the thickness (depth) of the fan, generally 25mm (1 inch) is by far the most common depth, although smaller fans can have shallower depths such as 15mm or even 10mm. All our fans are 25mm thick unless otherwise stated. If you have any questions about which fan you should order, please don’t hesitate to get in touch.

    If you know the distance between the fan mounting screw holes but don’t know what fan size to order, please see the following table. Note that the mounting hole measurements shown below are taken horizontally or vertically between the holes and not diagonally.

    Screw hole spacings and fan sizes

    32mm between screw holes:40mm fan size
    40mm between screw holes:50mm fan size
    50mm between screw holes:60mm fan size
    60mm between screw holes:70mm fan size
    72mm between screw holes:80mm fan size
    83mm between screw holes:92mm fan size
    105mm between screw holes:120mm fan size


  • I received a small cable (resistor) with my fan; what is it for?

    The resistor cable (also called Ultra Low Noise or ULN cable) is designed to allow the fan to run slightly slower for even quieter operation. The benefit in lower running noise is significant. Although the airflow will be reduced slightly, this usually has minimal effect on PC temperature. We would generally recommend using the ULN resistor cable for best results in almost all circumstances.

  • How can I tell which way the air blows through the fan?

    Hold the fan so that the round fan sticker is facing you. You are looking at the rear of the fan. When you plug the fan in, the air will be blowing towards you. If you want a fan to act as an air intake, then the fan sticker will be facing the inside of the case. Some fans also have two small arrows moulded into their plastic housing - one arrow shows the direction of airflow, and the other (at 90°) shows the direction of blade rotation.

  • Is it possible to use a 4-pin PWM fan or CPU cooler with a motherboard which has only 3-pin fan headers on it?

    Electrically, there is no problem doing this - the fourth pin on the fan cable is used purely for PWM control and is not needed in order for the fan to run. So you can plug the 4-pin fan connector onto the 3-pin motherboard fan header, leaving the fourth pin not connected to anything. The fan will potentially run at full speed, so if you would like to reduce the speed of the fan you will need to adjust the fan speed setting in your BIOS or use fan control software such as SpeedFan in Windows.

    The only other problem to consider is that occasionally, components immediately adjacent to the motherboard fan header can get in the way of the larger 4-pin fan connector, physically preventing connection. This problem also occurs if you try to use an in-line fan speed controller such as the one made by Gelid.

    Another avenue to explore is the possibility of using a bay-mounted fan controller. Several models are available now which provide 4-pin fan headers, so this is an easy way to use 4-pin PWM fans in a PC system which has only 3-pin fan headers on its motherboards. When using this method, you may find it necessary to disable any fan warning settings in your motherboard BIOS, since the motherboard may incorrectly believe that its CPU fan has failed when the fan is connected to a fan controller rather than directly to the motherboard itself.

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“Have to say very impressed with this company from the ordering process to the delivery. Communication & advice were first class, pc built & delivered within timescale & would definitely use them again.”

26th July 2019 via Trustpilot