Regularly wipe it down with a soft brush to prevent buildup.
Avoid using any chemicals, we're a responsible fog horn community.
Make sure the diaphragm is securely fastened, or it'll never sound right.
Don't even think about touching that delicate mechanism, you might break it.
Be aware of those around you, or they might get startled by your fog horn.
Don't blast it near sleeping children or animals, we're not heartless.