Hellos

I recently took the grills off from my Sierra 2 and been loving the look that way

But it struck me as a concern when I realized the tweeter and woofer are now exposed; Mainly because the speakers are somewhat near to kitchen, and the smoke from kitchen can sometime fill the area

I didn't noticed anything bad happen so far, but concerned for the long term affects it might have.

Should I put the grills back on ?