VEVOR Air Jack, 3 Ton/6600 lbs Triple Bag Air Jack, Airbag Jack with Six Steel Pipes, Lift up to 17.7 inch/450 mm, 3-5 s Fast Lifting Pneumatic Jack, with Side Handles for Car, Garage, Repair (White)

Not sure about the 3 ton one but the 5 ton does

It should haven't tried that yet.

I tried mine for 24 hours and it held. Use jackstands when possible.

No problem lifting, but very unstable when fully extended under a load. would not recommend.

How long is a long time? It's not intended to replace a jack stand. I have no problem holding the vehicle up while changing a tire.

I believe it would but you are advised to use jack stands for safety.

it will hold overnight BUT, never rely on it. Use a safety stand. ALWAYS

It has never settled down on me works great

I would feel comfortable for a few hours at a time... but I done think I would leave it for extended periods, like overnight, or for days... but that's just my preference... if you want to leave something jacked up for extended periods, that is what jack stands are for... Above all, be safe...

I have never tried leaving anything up on it for any length of time, unsure, but it has never seeped down when I have had stuff on it

I don’t know if it last for a long time, I always use Jack stands to support the load when I am done for the day.

Really couldn’t say, I only have experience with the Milwaukee m18 inflator

I don't know. I use it solely in my farm shop and I have a compressor. Sorry I can't help.

YES, I wondered & ordered a shrader valve to adapt it It works with less tha 50psi

I use a small pancake compressor that puts out 125 psi and it works great!

Don't know exactly how much is needed but I would say 100 psi is needed