Grex G4.1 PRO Sécurité Et Instructions D'utilisation page 21

- Do not modify or alter the helmet's internal polystyrene components in any way.
- Clean the inner components with a damp cloth only and allow it to dry at room
temperature away from direct sunlight.
- Never use tools or equipment of any sort to carry out the steps described
above.
WIND PROTECTOR
(Available as standard or accessory/spare part).
This accessory allows improved helmet performance under certain conditions of use.
The Wind Protector reduces unpleasant infiltrations of air under the chin.
See Fig. 22 for assembly and disassembly.
VENTILATION SYSTEM
The ventilation system of the Grex G4.1 PRO helmet consists of:
Front air intake:
front air intake, push the slider towards the back of the helmet. To close the front air
intake, pull the slider towards the front of the helmet (Fig. 23).
Rear extractors:
inside the helmet (Fig. 24).
it allows conveying and distributing air into the shell. To open the
allow warm and stale air to flow out, ensuring an optimum comfort
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