Free ventilation:
Airflow condensation inside the helmet is the key to preventing build-up, so choosing a helmet with good ventilation is a good starting point. Shark helmets usually have a ventilator diffuser below the visor and across the visor width - and rear air extractors help as they create another path for hot air without going near the visor - so check your helmet before you climb and make sure Make sure they're all open. If ventilation alone isn't enough, you can always open only a fraction of the visor.
Antifog treatment / solution:
"Visas have a specially designed anti-fog system, most helmets already carry an antifog visa or will have a pinlock-ready / pinlock" and of course there are plenty of anti-fog sprays and treatments after the market to buy yourself to apply, but be careful - Applies anti-fog sprays and even some viscous cleaners can render them useless by inserting an anti-fog visor or pinlock. A pinlock is basically a second visa attached to the inside of your main visa - think of it as double-glazing in the window - it creates a windmill seal against the cold outside air that helps perform the hydrophobic coating of the pinlock insert.
"Many premium helmets with sharks usually carry either a pinlock or are treated with antifog technology, so no additional treatment will be required. It is important to maintain antifog coatings so that they continue to work effectively - clean regularly with mild soap and water, Rinse well and you pick. ”
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