can this be just for air instead of buying cans of air to like blow dust out of a computer?

A place I work bought a set that refilled through the bottom... you got a 5-6 second burst from them and that was it, they were spent. So unlike CO2 dusters that have compressed liquid inside them that converts to gas with release the refillables are pure human breathable air, so very weak compression in this. Now... if you wanna haul a Scuba tank around.. thats a different story! You can go quite far with that! CO2's don't use chemicals to create pressure. its a natural function of compressed liquid to gaseous state change.

what's the psi on this?

You fill it with your own air from a compressor so the psi is whatever you set it to. I set mine to 125 lbs/in. I don't use it much because it runs out of air very fast and filling it takes more time than it is worth. I just by the arisol cans for a few bucks and they last at least 12 times as much as this when it's filled.

Is there anyway to increase the pressure above the preset 90psi?

Not with the current configuration. There is a safety relief valve that 'vents' when the pressure gets above 90psi. If you were to defeat the safety relief valve, buy removing it and replacing the inlet valve without the presure relief, you could go above 90psi. But, at that point, you have just voided the safety design of the container. Higher pressures will eventually cause the container to yield (fail) and now you have a life-threatening situation - think shrapnel tearing through your body parts. If you want something with higher pressure capability, look for another container that is designed, tested, and has the proper safety feature. Otherwise, you, or someone else may become a Darwin Award nominee.

Why not to fill it with acetone.gasoline?

Compressing then could cause autoignition under pressure.

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EWK 22 oz 110 psi Refillable Aluminum Aerosol Spray Can for Brake, Machine & Engine Cleaning

EWK 22 oz 110 psi Refillable Aluminum Aerosol Spray Can for Brake, Machine & Engine Cleaning

3.6/5

Product ID: 14166899

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Details

Brand
EWK
Tank Volume
0.65 Liters
Color
Black Silver
Recommended Uses For Product
Chemical
Material
Aluminum

⏳3 minutes continuous spray time

🎯Precision spray up to 350 cm

↕️Works upside-down seamlessly

Description

🚀 Spray smarter, not harder — clean like a pro every time!

DURABLE ALUMINUM BUILD - Lightweight yet robust design ensures stable pressure and long-lasting performance.
EXTENDED SPRAY DURATION - Maintain consistent output for up to 3 minutes, boosting your workflow.
LONG DISTANCE TARGETING - Hit hard-to-reach spots up to 3.5 meters away with pinpoint accuracy.
WIDE 55 SPRAY COVERAGE - Effortlessly cover large surfaces with a broad, even mist.
VERSATILE UPSIDE DOWN USE - Spray confidently at any angle—perfect for tight, awkward spaces.

The EWK 22 oz 110 psi Refillable Aluminum Aerosol Spray Can is engineered for professional-grade brake, machine, and engine cleaning. Featuring a wide 55° spray angle, a powerful jet stream reaching up to 350 cm, and a unique upside-down spray capability, it delivers consistent, long-lasting performance with up to 3 minutes of continuous spray time. Crafted from durable aluminum with stable air pressure, this refillable can is the ultimate tool for efficient, precise cleaning in automotive and industrial settings.

Specifications

Brand	EWK
Tank Volume	0.65 Liters
Color	Black, Silver
Recommended Uses For Product	Chemical sprayer, Vehicle Washing
Material	Aluminum
Item Weight	0.3 Kilograms
Product Dimensions	3.54"W x 11.42"H
Style	Gun
Power Source	Hand Powered
Included Components	Two-way flip nozzle, Safety Valve
Model Name	Refillable Compressed Air Aerosol Spray Can
Maximum Pressure	1.1E+2 Pound per Square Inch
Hose Length	1.5 Meters
UPC	700615477166
Manufacturer	EWK
Item Weight	10.5 ounces
Item model number	EB0105
Is Discontinued By Manufacturer	No
Manufacturer Part Number	EB0105A

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EWK 22 oz 110 psi Refillable Aluminum Aerosol Spray Can for Brake, Machine & Engine Cleaning

Details

Description

Specifications

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