Whats a good portable power supply would work for this?

It's a 5v fan, so pretty much any USB battery pack would work just fine. However, I used a much smaller rechargeable 3.7v battery, and it pumps out plenty enough air for my purposes.

What could i attach to the outlet for airflow redirection?

I couldn’t find anything that shape so I switch to this and redirected air with PVC. SparkFun Blower - Squirrel Cage (12V) SparkFun https://www.amazon.com/dp/B00LPUXVWS/ref=cm_sw_r_sms_awdb_t1_EC2LDb224SKGR I needed 12v instead of USB anyway so this worked a lot better for me. More air flow too.

Hola, se puede conectar a un power bank??

yes, it allows fans to be powered through USB ports found behind game consoles or portable power banks etc.

will the USB power bank gets warm?

It actually blows air pretty good inside my cosplay costume. It does not get hot, but slightly warm. Acceptable in my Storm Trooper and motorcycle helmet. I am glad I bought.

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GDSTIME USB Blower Fan Small 60mm x 15mm, Quiet 3 Speeds, Adjustable Mini 5V Brushless DC Cooling Fans for Helmet Laptop 3D Printer Ventilaiton

Product ID: 466250424

Details

Brand
GDSTIME
Power connector type
USB
Product dimensions
15L x 60W x
Voltage
5 Volts
Wattage
1.5 watts

🌀16 CFM airflow

🔌5V USB powered

🎚️3-speed adjustable control

Description

🆒 Stay cool, stay ahead — turbocharge your gear with precision airflow!

CUSTOMIZABLE AIRFLOW - 3-speed controller lets you dial in the perfect balance of silence and cooling.
DURABLE SAFE BUILD - Brushless motor with UL94V-0 flame-resistant housing ensures long-lasting, worry-free operation.
PRECISION COOLING POWER - Delivers a focused 16 CFM airflow to keep your tech chill under pressure.
SPACE SAVVY LOW PROFILE - Slim 33mm design fits tight AV cabinets and racks without cramping your style.
PLUG PLAY USB CONVENIENCE - Powered by any USB Type-A port—whether at your desk, in your car, or on the go.

The GDSTIME 97mm x 33mm USB Blower Fan is a compact, brushless centrifugal cooling solution designed for electronics in tight spaces. Featuring a 3-speed adjustable controller and USB power compatibility, it delivers a focused 16 CFM airflow at a quiet 34.3 dBA, ideal for modems, routers, gaming consoles, and AV cabinets. Its durable, flame-resistant build and low-profile design ensure reliable, efficient cooling to extend your devices' lifespan.

Specifications

ASIN	B07TCZG479
Air Flow Capacity	4.51 Cubic Feet Per Minute
Best Sellers Rank	#111,359 in Computers ( See Top 100 in Computers ) #357 in USB Fans
Brand Name	GDSTIME
Compatible Devices	Gaming Console, Laptop
Cooling Method	Air
Customer Reviews	4.3 4.3 out of 5 stars (346)
Item Dimensions L x W x H	15L x 60W x 60H millimeters
Manufacturer	GDSTIME
Material Type	Plastic
Maximum Rotational Speed	4500 RPM
Model	GDT6015S5VUSB-BF
Noise Level	34 Decibels
Number of Items	1
Number of Packs	1
Part Number	GDT6015S5VUSB-BF
Power Connector Type	USB
Unit Count	1.0 Count
Voltage	5 Volts
Warranty Description	Within 1 year from the date of purchase
Wattage	1.5 watts

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