Portable tire inflator recommendation?

Vi air is what all the kids use to jack up their cars, I have one and it works great up to 100 psi; can buy on ebay or amazon

I'm not a fan of portable inflators without tanks. Compressing air causes moisture to condense and you can pump extra water into your tires - I've seen this happen. This is why the big compressors all have a drain/relief valve on the bottom of the tank. We carry a small(ish) compressor with a tank (Husky brand, I think). Main disadvantage is that it is 110 volt only... but we'll call roadside assistance for any issues with the fiver or DRW truck while travelling, anyway. I use the compressor to check and adjust pressures the evening before we hit the road each time - the morning of so tires are cold if we've traveled the previous day, too.

Rob

Porter Cable has a nice inflator that does tires and inflatables. Runs off their 18v batteries or 12v outlet.

I chose it because I had other PC brand tools, so swapping batteries between them was handy. The drill I use for my stabs and a lantern for extra light wherever.

Most I've seen have locking tabs on the hoses which don't screw on but do stay on without being held. (Most air-through valve caps don't have threads on them anyway, but merely a sequence of ring grooves, so screw-on attachments aren't always the most useful anyhow.)

I've never been particularly impressed by the inflators I've used; they're usually noisy and slow and seem poorly built. There may well be exceptions among ones I've not used.

I have a nice little 120V compressor, a Fini AirBoss, for my motorhome and am quite pleased with it. This unit is about the size of a smallish suitcase and seems to be pretty nice for what it costs. Among other places, Lowes carries it sporadically, and Sears sells it to (rebranded as a Craftsman) at what is usually a higher price.

Some here use a gas cylinder (usually CO2) and regulator setup, which might work out well for you.