SUOMY MX SPEED PRO Manual Del Usuario página 24

REAR AIR VENTS — C — Figure 4
The innovative rear air intake (C) has been designed to further
improve ventilation inside the helmet, using residual air flows that,
again thanks to the Venturi effect, are able to generate a depression
in the lower part of the helmet, in this way ensuring a substantial
extraction of the hot air inside it, consequently maintaining a
comfortable temperature.
SIDE AIR INTAKES — D — Figure 4
The fixed air intakes on the sides (D) allow the extraction of air
inside the helmet through the Venturi effect. Their shape has been
designed to optimise this effect and therefore ensure a substantial
extraction of air while maintaining perfect aerodynamic efficiency.
The particular shape is also able to reduce turbulence to a minimum
and limit the possibility of the helmet shaking.
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C
D
FIGURE 4
C
D