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The objective of ASHRAE 1480-RP was to expand the database for the capture and containment requirements of island canopy hoods. The study investigated the performance of four 10 ft long (3.05 m) island canopy hood configurations over standardized cooking equipment lines including: (1) a 4 ft (1.22 m) deep rear filter single-island, (2) a 6 ft (1.83 m) deep V-bank single-island, (3) an 8 ft (2.44 m) deep double-island, and (4) a 10 ft (3.05 m) deep double-island hood. More than 200 configurations were tested, including the evaluation of side panels, replacement air strategies, and replacement air temperatures. This paper provides an overview of the capture and containment performance for the two single-island canopy hoods. It was found that large appliance overhangs and wellbalanced, low-velocity replacement air were critical for the optimization of single-island canopy hood performance.