Multilayer sound absorbing structure comprising mesh layer

A multilayer sound absorbing structure comprising:

• a first microperforated film comprising through-micro bores, a second microperforated film comprising through-micro bores, and a mesh layer sandwiched between the first and second microperforated films, wherein the diameter range of the through-micro bores of the first and second microperforated films is 10 microns to 200 microns, the first and second microperforated films have a Gurley air permeability of 0.1 seconds per 100 cc to 300 seconds per 100 cc, the first and second microperforated films have about 77,500 through-micro bores per square meter to about 6,200,000 through-micro bores per square meter, the thickness of at least one of the first microperforated film and the second microperforated film is about 10 microns to about 250 microns, the mesh layer comprises mesh openings with an average diameter of about 0.001 mm to about 30 mm, the weight of the mesh layer is about 5 grams per square meter to about 1500 grams per square meter, and the total thickness of the multilayer sound absorbing structure is about 50 microns to 1500 microns.