An<unk>  An<unk>  with gel leaking out of a hole in the upper left corner Shipment of vaccine in insulated box with gel<unk> s An<unk>  or gel<unk>  is a portable plastic bag filled with water, refrigerant gel, or liquid, meant to provide cooling. They can be divided into the reusable type, which works as a thermal mass and requires freezing, or the instant type, which cools itself down using chemicals but can only be used once. The instant type is generally limited to medical use as a cold compress to alleviate the pain of minor injuries, while the reusable type is both used as a cold compress and to keep food cool in portable coolers or in insulated shipping containers to keep products cool during transport.
Ice pack
Posey vest
Racal suit
Mustard bath
Dental floss
Hip protector
Face shield
Pneumonic device