CFR › Title 21 › Part 870 › §870.580021 CFR §870.5800Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Identification. A compressible limb sleeve is a device that is used to prevent pooling of blood in a limb by inflating periodically a sleeve around the limb.(b)Classification. Class II (performance standards).