Noise suppressors widely used in cellular sound-absorbing structures are considered. The most cost-effective way to test new structural geometries is through the use of additive technologies, which have been used to produce modified deturbulence meshes. The developed muffler design is a modification of the well-known Honeycomb-type honeycomb deturbulator. Velocity gradients obtained by the PIV method confirmed a decrease in velocity pulsations. Measurement results using a TL pipe showed the effectiveness of the modified mesh compared to the classic honeycomb. The possibility of producing mesh samples using additive technologies was tested. The studied geometry suggests the possibility of using a modified mesh as a passive method for reducing turbulent noise.