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I have a paasche airbrush that was given to me but I have no compressor. My main question is do I need a special compressor? I've also heard you need cleaning products as well. So I guess what I need to know is since I have an airbrush what do I need to use it?

Why no one gives me a Paasche just like that?
I'm new to airbrushing and people here can tell you more, but here are my five cents. For starters you will need good amount of cash:
- Compressor - any piston oiless compressor can help. You can consider to add a tank late on, but it is not something mandatory.
- Airbrush cleaner - I use Vallejo and it is great.
- Airbrush cleaning pot - so you can spray all the dirt into it. This is a must have.
- Airbrush Thinner - buy one, depend on the brand paints you will use or brew your own -https://www.youtube.com/watch?v=T8k3BJC80IQ
- Airbrush Flow Improver - If you consider to spray acrylics rather than specially designed airbrush paints like Tamiya/Mr. Hobby it is a must have fluid.

Also, do you have a hose that comes with the brush? If no, you should buy one as well.

This is all I can think of. Overall Airbrushing is an expensive stuff.

I'd add to that a decent airbrushing setup - a fan backed extractor booth type thing. They're dead cheap but without them you'll find wherever you spray is suddenly coloured a little differently to the rest of the house.

An extractor or spray booth is a biggie. I spray in our tiny spare room, and have to keep the windows open both behind and to the side of me. Clouds of paint-mist drift into my lamp, and I'd hate for it to coat the rest of the room.

It might be because I use car screen-wash as a thinner.

 Skinnereal wrote:
Clouds of paint-mist drift into my lamp, and I'd hate for it to coat the rest of the room.

I had to spend several hours shaving a carpet to get a fine red mist layer off it after my first foray into airbrushing.

That's exactly what it sounds like; bag of disposable razors and a lot of hard work

 Skinnereal wrote:
An extractor or spray booth is a biggie. I spray in our tiny spare room, and have to keep the windows open both behind and to the side of me. Clouds of paint-mist drift into my lamp, and I'd hate for it to coat the rest of the room.

It might be because I use car screen-wash as a thinner.

I Actually live in Florida so the weather is generally nice and calm. Is doing it outside an option?

If I did that, it'd take all week to dry.
On a dry, calm day....
If the light is good enough to spray in.
But, we do have a garden, so is an option for the few nice spraying days we do get.

And other such whines from a Whinging Pom.

You go for it, but watch the humidity. I hear The South gets quite soggy, and getting moisture in the spray can ruin a good paintjob.
If you want a compressor, get a moisture trap for it.

Compressor wise I'd get something no less than 1/6 HP and unless you're on a very tight budget I'd just get something with a tank. If you have a tank you'll get smoother air and also be less likely to need a 2nd moisture trap (most hobby compressors will come with a regulator for adjusting pressure and a moisture trap on the outlet of the compressor, sometimes you need an additional moisture trap closer to the airbrush as the hot air from the compressor cools through the hose and more condensation forms, but the tank itself acts a bit like a moisture trap as it gives the air more time to cool before hitting the hose).

But if you live in a humid environment, you may need a 2nd moisture trap either way.

As for spraying outside, there's probably a couple of considerations, one would be dust and contaminants resting on the model before/during/after spraying. The 2nd would be a safety issue, you need to get the cloud of paint away from you, if there's no breeze then working outside you can still end up sitting in a cloud of paint. Even worse if you get a sudden gust of wind it can blow your freshly sprayed cloud of paint directly in your face.

So working outside is an option to stop paint settling on objects inside your house, but it's not an alternative to wearing safety gear. A good extractor is an alternative to safety gear as long as it's good enough to get the cloud of paint away from you immediately and you aren't spraying something really hazardous.