Method for noise reduction in an office space by use of a cupboard with a furniture body (2, 3, 4, 5) and at least a front shutter, which is composed of profile elements arranged parallel to one another and connected to one another, and is guided in guide grooves arranged on the furniture body (2, 3, 4, 5), - wherein the profile elements formed as hollow profile with a cavity comprise a first profile body and a second profile body, which are arranged spaced from one another, and between which the cavity is formed, - wherein the first profile body and the second profile body are integrally connected with one another, - wherein, in both profile bodies (8, 11), openings spaced from one another are introduced, - wherein each profile element has connecting means (6, 7) on its longitudinal sides (6, 7), through which the profile elements connected in an operative manner form the front shutter, and - wherein the one connecting element is an approximately C-shaped opening in cross-section, which extends over the entire length of the profile element, while the other connecting material is formed as a substantially circular element in cross section, which is connected with the longitudinal side of the first profile body through a strip-shaped element, characterized in that - the openings introduced in the first profile body are formed in a round manner, - the spacing of the openings in the longitudinal direction of the profile body (8, 11) is seen as larger than double the extent of the openings in the cross section of the profile bodies (8, 11), - when viewed in cross-section, the width of the openings amounts to less than a third of the width of the front side of the profile body (8, 11), and - the sound absorption in the cupboard as well as in the profile elements of the cupboard occurs without an additional sound-absorbing material being used, which enhances the sound-absorption effect even further, - so that the cupboard comprises a sound-absorption level according to EN DIN 354 of at least 0.4. - wherein the profile elements formed as hollow profile with a cavity comprise a first profile body and a second profile body, which are arranged spaced from one another, and between which the cavity is formed, - wherein the first profile body and the second profile body are integrally connected with one another, - wherein, in both profile bodies (8, 11), openings spaced from one another are introduced, - wherein each profile element has connecting means (6, 7) on its longitudinal sides (6, 7), through which the profile elements connected in an operative manner form the front shutter, and - wherein the one connecting element is an approximately C-shaped opening in cross-section, which extends over the entire length of the profile element, while the other connecting material is formed as a substantially circular element in cross section, which is connected with the longitudinal side of the first profile body through a strip-shaped element, - the openings introduced in the first profile body are formed in a round manner, - the spacing of the openings in the longitudinal direction of the profile body (8, 11) is seen as larger than double the extent of the openings in the cross section of the profile bodies (8, 11), - when viewed in cross-section, the width of the openings amounts to less than a third of the width of the front side of the profile body (8, 11), and - the sound absorption in the cupboard as well as in the profile elements of the cupboard occurs without an additional sound-absorbing material being used, which enhances the sound-absorption effect even further, - so that the cupboard comprises a sound-absorption level according to EN DIN 354 of at least 0.4.