Comment: I bought this hoping it would keep the fog down on my face shield, and it did. It installed easily fits well and keeps the fog down on my face shield. The only drawback is it's a little tough to take the helmet off but worth it.
HJC CL-16 Breathguard Review
Comment: Fantastic product, excellent quality, perfect fit, and a fair price.
HJC CL16 Breath Guard Review
Comment: It does what it is designed too...
It only costs $9...
Do YOU neede it? I do NOT think so.
It is most useful sub 40 degrees...
Otherwise, I have found in favor of NOT bothering with it... The CL-16 helmet still does a fine job of remaining fairly fog free without it, but it does it help when the air is truly cold.