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I imagine stainless steel particles are in a lot of things. I, like many others, use stainless steel silverware, cutlery, pots/pans, sinks/faucets, etc..

If stainless steel is worrisome, then I feel like one or two injections is probably the least of concerns at this point. Then again, I'm just an ignorant person with a keyboard and internet access, so what do I know?

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I hope that you’re aware injecting air in your vein may potentially lead to your death in a short amount of time ?

Vaccines go into muscle, not blood vessels.

It's still much better for everyone involved to not stick air into your muscle, though.

Any air accidentally injected into a vein as part of a vaccination would be insufficient to cause injury. It takes tens or hundred of milliliters of air to cause a venous embolism in a typical person.

Covid vaccine syringes are 1 ml. It's impossible to inject enough air using one of these syringes to cause any sort of trouble.

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