100% polyester fiber is heat-treated by high-tech and made into a heat treatment public method to achieve density and ensure
ventilation. It is an excellent product in sound absorbing and heat insulating materials. The highest acoustic absorption
coefficient is 0.9 in the noise range of 125-4000 Hz. In the above, shorten and adjust the reverberation time according to
different needs, remove sound impurities, improve the sound effect, and improve the clarity of the language. It is not only
suitable for professional performing arts and audio-visual equipment testing rooms, but also widely used in theaters, conference
rooms, indoor gymnasiums, concert halls, classrooms, KTV, hotels, offices, family music rooms, etc. .
