Abstract: The invention provides a panel section having an internally disposed open region concealed by a flexible member possessing sufficient porosity to be permeable to a flow of air therethrough. The panel section may be made by cutting an opening from an acoustical ceiling tile panel and then covering the opening with a porous and flexible member such as a cloth piece. The porous and concealed opening allows for detectable substances from utilities such as air, light and audio waves to pass through the flexible member and opening of the panel section. The panel sections are particularly useful in concealing utilities in suspended ceiling systems from view. The decorative patterns, styles, colorings, finishes, and decor of the permeable panel sections of this invention are distinctly unique.