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Dominant sound freq. [Hz], low range
Foam dust filter (7 V)
195,849
Nylon dust filter (7 V)
195,849
No obstacle (7 V)
130,713
Hexagonal grille (7 V)
126,992
Plastic dust filter (7 V)
126,992
Circular grille (7 V)
20,306
Value
Value
Power voltage
Obstacle
Ascending
Descending
Ascending
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