Soundproof PORFLES screens belong to a group of spatial absorbents. They absorb more effectively than the absorbents with a flat surface. Carefully selected shape, material and design technology make a ratio of absorption capacity to the weight of PORFLES screens more advantageous than for the flat boards. Reduction of noise level in the accommodation halls can be obtained by mounting PORFLES panels on the surfaces that intensively reflect the sound, especially on a ceiling and interior walls of an accommodation.