The only thing to be concerned about would be pooling of combustion by-products in front of your face. If you use a low velocity fan blowing from behind over your shoulder at an angle, that will provide enough air movement to draft away any pooling that might occur.
Try to avoid back drafts when there is a breeze blowing the fumes (and flame) back into your face. Be sure that no one can approach the back side of the flame, only from behind and the sides.
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