SELECTING THE PROPER MATERIALS The sound conditioning of building interiors usu- ally requires the introduction of sound-absorbing materials for comfortable and efficient use. Products designed specifically for this purpose are commonly known as acoustical products. Celotex acoustical products include Acousti- Celotex cane and mineral tiles (top two pictures) and Muffletone standard and fissured tiles (two lower pictures). Both are made in different thick- nesses, thus providing a range of sound absorption from which proper selection can be made in each case. Acousti-Celotex (Cane) Muffletone (Standard ) Each area to be sound conditioned must be accu- rately analyzed and engineered so that the right material may be specified to produce the results desired. Which material to use, how and where to install it for best results, the mechanics of efficient, eco- nomical erection—these important questions may be safely left in the hands of the local Celotex Sound Conditioning distributor. Part of the world’s most widely experienced organization in this field, he can be depended upon for competent, efficient service. Acousti-Celotex (Mineral) ey < SC Cees eseeec er eseeeeeeser ‘ ee ee er eC eee er esr eee ere e see eeveges eee ees eee eee eee eee oes ees coe ee ese e eee ee eee eto ee oes eeeseeseeteeeretseeeveee tetrteoeeveetrea ee eoeceeeeeve ev eesnes ee ese ee c eevee eeceee scree eee ee ee we os Certo tr eee e eee ere ee eeree as eee ee cece e eee eee ee eee eee: eres e rece ee eae eoeve eoseere ‘ ee eee oe ee ee eee ee ere eevee eo eee ere eee oe ee ewe eee eee 4 ee eee eer eer ere cere oer o eons ee er ee eee eres ees eee eeceee wo . o ooo e oe eevee ercoeenes Muffletone (Fissured )