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Post by paulsee on Mar 6, 2015 16:21:03 GMT
It seems to be the common advise to spit in your divers mask to stop it from fogging.
However, the procedures vary. Some say to spit, then rinse, others say to spread around the spit and just leave it there. (Ugh)
Others say just use defogging liquids.
My personal experience is varied. Sometimes it works and in other times it initially works, but as time goes on, it fogs up anyway. (I am using the spit and rinse method)
Maybe MB can give a definitive answer to this common advise and see if spit can really keep diver masks clear and avoid fogging.
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Post by OziRiS on Mar 6, 2015 19:53:43 GMT
Good one!
Maybe expand it to other types of glasses/goggles too? I'm thinking safety glasses and goggles like the ones used in workplaces, but also the types used in the military. I have more experience with the latter and what I've found personally is that when you're outside, you can buy all the fancy glasses/goggles and use all the techniques you want (dish soap on the inside is one people swear by around here), but once it gets cold, there's no stopping condensation. The heat from your body and the cold air WILL meet on that lense and fog it up.
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Post by the light works on Mar 7, 2015 2:14:48 GMT
back in the dark ages when I was diving. it was spit. smear it around, and rinse. I never tried without, but I never had a fogging problem.
the only solution I found with safety goggles was to increase the ventilation by a factor of three or four.
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Post by paulsee on Mar 8, 2015 10:31:45 GMT
OZ that sounds like a good addition to the myth. I do not have experience, but do motorcycle helmets also fog up when there is heavy moisture like rain and low temperatures? How about motorcycle or aviator goggles or gas masks? (I wonder if anyone uses those types of goggles anymore?)
TL Thanks for the input on spit and rinse. On increasing ventilation of safety goggles, that should do it.
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Post by the light works on Mar 8, 2015 14:50:45 GMT
OZ that sounds like a good addition to the myth. I do not have experience, but do motorcycle helmets also fog up when there is heavy moisture like rain and low temperatures? How about motorcycle or aviator goggles or gas masks? (I wonder if anyone uses those types of goggles anymore?) TL Thanks for the input on spit and rinse. On increasing ventilation of safety goggles, that should do it. in a word, yes. it doesn't even have to be that cold or humid. a full face motorcycle helmet will fog up sitting at a traffic light in Los Angeles in the summer. our SCBA masks also fog up if we are not on air. |
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Post by OziRiS on Mar 9, 2015 1:02:18 GMT
OZ that sounds like a good addition to the myth. I do not have experience, but do motorcycle helmets also fog up when there is heavy moisture like rain and low temperatures? How about motorcycle or aviator goggles or gas masks? (I wonder if anyone uses those types of goggles anymore?) TL Thanks for the input on spit and rinse. On increasing ventilation of safety goggles, that should do it. I can vouch for gas masks fogging up too. As for the ventilation bit, numerous brands (like Wiley-X, ESS and Oakley) boast that their glasses and goggles are "fog free", mainly because of increased ventilation, but I have yet to find a pair that won't fog up if you get sweaty in cold weather and that's something soldiers do quite often. |
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Post by silverdragon on Mar 9, 2015 7:19:54 GMT
On my experience of Motorcycle helmets....
The old method was to rub the inside with Potato juice to create a film....
That worked better than nothing.
Some used a film of soap, they rubbed a bar of soap over the visor insides.
That worked, but not for long on a wet day.
Since then, they makers of visors have come up with many anti-fog devices...
The greatest one being the nose-guard, thats stops your breath going up to the visor.
You should always ride with a small crack or vent to ventilate the visor if it starts to fog...
But how good are the films they produce that are supposed to be anti-fog.
Spit and rinse....
Yes I used that in SCUBA, it works, as long as you dont rinse to well.
The spit again creates a film of wet inside the mask that prevents some fogging.
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