Did I Just Mess Up My Coin Collection?

I think your fine.
What I do when I use airtites, I basically take the two half's, and hold them like I'm holding a coin, by it's edge, and just shake it a few times. Sounds over-compulsive and probably is but, I do that to let the air as I'm waving blow out any dust or specs.

It's they were High MS blast white you might have a reason to worry.
Circulated coins will be fine.

It'll be fine. They aren't that fragile that air will ruin them. I wouldn't make a habit out of it but I'm sure they'll be ok.

Save the spitting for sidewalks and personal enemies. Just kidding. Letting an airtite breathe for a few minutes before sealing a new coin in it is probably a good idea.

Before enclosing a proof coin in an Airtite, I use a large rubber ear syringe to blow away any dust or lint that might be lurking in the capsule. Lay each half of the capsule with the inside surfaces up, and blow a couple blasts of air straight down on it. Usually leaves it slick as a whistle.

May well depend on what you hate right before doing that. If your one of those people that use a lot of Garlic, Onions, hot foods, then it's not your coins to worry about. Could be why you collect coins rather than being with friends.
Just joking I hope. Actually so much does depend on what you did while blowing on them. In possibly most instances, no problem. If your really worried, couldn't cost to much to redo all of them with new items. Usually no need to blow out a 2x2, air-tights, plastic tubes, etc. Most are basically clean enough for coins. I still would do what you did only with some air pumping device if you see dust. Camera departments in most stores carry those little brushes with a bulb for air pressure for cleaning lenses.

I would remove them, blow out the airtites with canned air, rinse the coins with acetone and put them back.

Before you handle your coins you should:

1. Put on a brand new, clean set of white cotton gloves.

2. Put on a white, full body breathable suit kit (don't use the latex gloves though): http://www.lowes.com/pd_19107-75227...rs+suit&pl=1

3. Make sure you wear the nose/mouth mask to avoid any moisture getting near the coins.

4. Put on goggles (you never know!)

5. Put on the Air Conditioning full-blast to remove any humidity from the room.

6. Once the air conditioner is done, shut it off & wait 10 minutes for any dust to settle to the floor.

7. Now you're ready to carefully place the coin into the airtite container using the cotton gloves on your hand.

Provided you don't have kids, animals, or anyone else to intrude into your carefully prepared area then your coin will thank you for all the care you took.

What do you mean nobody else does all that?

Happy April Fool's Day!

In all seriousness, your coin is probably fine. It's been in circulation for so long that much worse probably happened to it and it's still a beauty.

I would only be concerned if it was an MS70 proof coin.