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#4522274 - 09/21/17 02:14 PM Ongoing problems with helmet visor fogging
dparm Offline


Registered: 04/19/10
Posts: 13466
Loc: Chicago, IL
My Arai GP-5W has been a wonderful helmet so far, with one huge exception: the visor fogs like there's no tomorrow.

My race supply shop and Arai USA both suggested I just leave the visor cracked slightly. This does resolve the fogging problem but creates two other problems: light gets in and my eyes don't adjust properly, but more importantly, the visor doesn't have a "lock" and I am worried about it flipping up in an accident/if debris strikes it.

I recently installed a universal anti-fog insert, sometimes called a pinlock. This also works pretty well, but the biggest problem is the weird glare and reflections I get. Depending on the angle of the sun, I sometimes see my own eyes and nose reflected back right in the middle of the visor. Arai sells an exact-fit anti-fog/dual-pane visor rather than this generic insert I have, and they did also tell me this would solve fogging problems, but I'm unsure if it will suffer from the same glare problems.


The GP-5W is named as such because it has a larger eyeport (90mm versus the traditional 60mm), and I'm wondering if that's the root cause of the problem: the visor opening is so tall that my breath exits my nose right onto the visor.

Arai does not sell a breath deflector for their auto helmets, but I might try their motorcycle versions to see if they fit.


If breath deflectors don't fit or don't resolve the problem, I fear I may be forced to find a new helmet with a smaller eyeport. I will basically wear it for a few minutes and breathe hard to see if I can fog it. My first stop would be their GP-6 helmet which is the same shell that fits me perfectly but with the 60mm visor opening, but some of the Simpsons, like the Devil Ray, appear to have smaller eyeports as well. Bells aren't shaped right for my head and Stilo is getting out of my price range.

Any other thoughts or ideas?
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#4522314 - 09/21/17 02:51 PM Re: Ongoing problems with helmet visor fogging [Re: dparm]
Gimpy1 Offline


Registered: 08/24/17
Posts: 107
Loc: Displaced Texan in Mexico City
go to a scuba shop and ask the guy at the counter for anti fog. The anti fog for diving masks is safe for plastics and works great. It can be quite pricey tho.

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#4522326 - 09/21/17 03:02 PM Re: Ongoing problems with helmet visor fogging [Re: dparm]
robertcope Online   content


Registered: 01/10/08
Posts: 1001
Loc: TX
That's frustrating, for sure. I do agree with you that ideally the visor should be down, although if I am not racing I keep mine up. I do wear protective eyewear (Oakley sunglasses), though. Normally I do have an issue with breath causing fogging while I'm sitting in grid, especially in the morning, but it clears up when I'm on track.

Sorry, I don't really have any good thoughts. You might try posting this at trackjunkies.org, a more track focused forum.

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#4522332 - 09/21/17 03:07 PM Re: Ongoing problems with helmet visor fogging [Re: Gimpy1]
dparm Offline


Registered: 04/19/10
Posts: 13466
Loc: Chicago, IL
Originally Posted By: Gimpy1
go to a scuba shop and ask the guy at the counter for anti fog. The anti fog for diving masks is safe for plastics and works great. It can be quite pricey tho.



The two Arai USA technical guys and my race supply shop both said those sprays are not reliable, and they both recommended against the "dish soap" or spit trick.
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#4522353 - 09/21/17 03:30 PM Re: Ongoing problems with helmet visor fogging [Re: dparm]
JC1 Online   content


Registered: 11/29/08
Posts: 3004
Loc: Oshawa, Ontario Canada
There used to be a trick to keep bathroom mirrors from fogging up, but using shave foam in the can that produces the white foam (cheap stuff). You might want to try that.
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#4522365 - 09/21/17 03:41 PM Re: Ongoing problems with helmet visor fogging [Re: dparm]
Kuato Offline


Registered: 10/23/05
Posts: 7094
Loc: Colorado
I'm surprised a high end helmet doesn't have the small vents that can be opened and closed.
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#4522380 - 09/21/17 04:01 PM Re: Ongoing problems with helmet visor fogging [Re: Kuato]
dparm Offline


Registered: 04/19/10
Posts: 13466
Loc: Chicago, IL
Originally Posted By: Kuato
I'm surprised a high end helmet doesn't have the small vents that can be opened and closed.


It does, but in a closed cockpit car there just isn't much air directly hitting the helmet, even with the windows down.


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#4522427 - 09/21/17 04:51 PM Re: Ongoing problems with helmet visor fogging [Re: dparm]
irad Offline


Registered: 02/26/12
Posts: 59
Loc: NJ
Take an Ivory soap bar and streak the inside of the helmet. Then rub the entire inside with a soft cloth until the soap residue and glare disappears. Will last about a week of continuous use.

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#4522451 - 09/21/17 05:18 PM Re: Ongoing problems with helmet visor fogging [Re: dparm]
JohnnyJohnson Offline


Registered: 10/22/09
Posts: 2745
Loc: Wet side WA
Why do you need the visor in a closed cockpit car?
Maybe you need one of those NASCAR helmet type connectors for fresh air?


Edited by JohnnyJohnson (09/21/17 05:26 PM)
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#4523054 - 09/22/17 10:10 AM Re: Ongoing problems with helmet visor fogging [Re: JohnnyJohnson]
dparm Offline


Registered: 04/19/10
Posts: 13466
Loc: Chicago, IL
Originally Posted By: JohnnyJohnson
Why do you need the visor in a closed cockpit car?
Maybe you need one of those NASCAR helmet type connectors for fresh air?



To protect against any debris that might enter the car. It's a safety thing.
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#4523080 - 09/22/17 10:44 AM Re: Ongoing problems with helmet visor fogging [Re: dparm]
dparm Offline


Registered: 04/19/10
Posts: 13466
Loc: Chicago, IL
Well I just heard from someone else that the GP-6 with its smaller eyeport suffers from the same problem, so it looks like the breath deflector is the next thing to try.
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#4523132 - 09/22/17 12:29 PM Re: Ongoing problems with helmet visor fogging [Re: dparm]
Kuato Offline


Registered: 10/23/05
Posts: 7094
Loc: Colorado
Originally Posted By: dparm
Originally Posted By: Kuato
I'm surprised a high end helmet doesn't have the small vents that can be opened and closed.


It does, but in a closed cockpit car there just isn't much air directly hitting the helmet, even with the windows down.




Ahh, inside a car....got it.
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#4523141 - 09/22/17 12:35 PM Re: Ongoing problems with helmet visor fogging [Re: dparm]
robertcope Online   content


Registered: 01/10/08
Posts: 1001
Loc: TX
Originally Posted By: dparm

To protect against any debris that might enter the car. It's a safety thing.


Also to protect against fire. Fire bad.

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#4523174 - 09/22/17 01:28 PM Re: Ongoing problems with helmet visor fogging [Re: dparm]
bdcardinal Offline


Registered: 06/03/05
Posts: 10992
Loc: Santa Barbara, CA
I was going to suggest the air duct. I know they make add on kits for them. A friend of mine with a NASCAR truck says the ones that go in the top are amazing.
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#4523912 - 09/23/17 11:07 AM Re: Ongoing problems with helmet visor fogging [Re: bdcardinal]
dparm Offline


Registered: 04/19/10
Posts: 13466
Loc: Chicago, IL
Originally Posted By: bdcardinal
I was going to suggest the air duct. I know they make add on kits for them. A friend of mine with a NASCAR truck says the ones that go in the top are amazing.


You mean a forced air system like this?

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