3M Speedglas ADF G5-01 Instrucciones De Uso página 12

8. The airflow may be adjusted inside the welding helmet for wearing comfort. Airflow may be adjusted two separate ways – entering from the lower
jawline of the welding helmet or entering at the top of the visor, or a mix of the two. The air entering at the top of the visor may also be further
adjusted to point toward the visor or toward the wearer's face.
a. To adjust airflow from bottom to top, lift the outer welding shield into the raised (open) position. Locate the UP – DOWN lever on the left side
of the welding helmet. Adjust it to the desired position for incoming airflow (Fig. 8a). The adjustment drives a set of gears in the top of the
welding helmet that runs air to different channels.
b. To adjust the airflow toward the visor or the wearer's face, with the airflow coming from the top (UP) of the welding helmet, locate the VISOR
– FACE lever on the right side of the welding helmet. Adjust it to the desired position for incoming airflow (Fig. 8b). The adjustment drives a
deflector in the top of the welding helmet that aims air at the visor or wearer's face.
NOTE: When air is directed completely to the jawline of the wearer (DOWN position), the VISOR – FACE controls will have no effect.
c.
The air distribution and comfort is also affected by the tilt position of the welding helmet and the distance of the welding helmet from the
wearer's face (see "Welding Helmet Donning & Fitting" #5).
Fig. 7a
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Fig. 7b