How to clean up the polyester fiber sound absorbing board
Directly wash the surface with a dust cleaner, or sweep with feather duster on it
Grease and rust, use a special degreasing, rust cleaning agent (you can choose the car with the oil derusting agent)
Mud stains. To use water soaked polyester fiber sound-absorbing panels, a higher water absorption scrub with weak alkaline foam cleaning agent scrub
