Honda Accord Sedan 1992 Reference Owner's Manual page 21

How the Airbag Works
If you ever have a severe frontal collision, your airbag will instantly
inflate to help protect your head and chest.
When the airbag inflates, you may hear a fairly loud noise and you
might see smoke and powder. This is normal; it is caused by the
inflation of the airbag.
To do its job, the airbag inflates with considerable force. So, while it
can reduce serious injuries and even save your life, the airbag might
cause some facial or other abrasions.
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