Atomization is useful in many applications including combustion, spray painting, and fire suppression. To form a more complete understanding of the atomization process, it is necessary to study the near-, mid-, and far-field regions of a spray. Previous studies from this group, as well as from collaborators, have explored the near-and mid-field regions of a canonical airblast atomizer under atmospheric conditions. To provide a more complete atomization assessment, experimental spray measurements in pressurized environments are necessary. The Chamber for Assorted Pressurized Spray sUrveiLlancE, or CAPSULE, has been designed and constructed to operate the canonical airblast atomizer at pressures up to 1 MPa and volumetric gas flow rates of nearly 4000 SLPM. The CAPSULE is a 190 L (50 gallon), 316L stainless steel pressure vessel equipped with six sight glasses to collect atomization data using multiple experimental techniques, including backlit imaging, Phase Doppler Particle Analysis (PDPA), and high-intensity X-ray radiography. The CAPSULE is fed by compressed air lines for both co-axial and swirl flow conditions. This paper provides an overview of the CAPSULE design, the major components in the flow loop, and the canonical airblast atomizer. Preliminary backlit imaging results are presented for ambient pressures in the range 0.1-0.5 MPa.