Dominant sound freq. [Hz], high range
Foam dust filter (7 V)
19330,5
Metal dust filter (7 V)
19330,5
Silon (40 den) on the circular grille (7 V)
19330,5
Circular grille (7 V)
18780,2
Silon (20 den) on the circular grille (7 V)
17726,2
Plastic dust filter (7 V)
5583,4
Hexagonal grille (7 V)
1974,0
No obstacle (7 V)
1974,0
Nylon dust filter (7 V)
1974,0