HCEA (Health Care Exhibitors Association) — Trade association for firms exhibiting in health care and medical events.

Hall — A generic term for an exposition facility. May also refer to an individual area within a facility. For instance, one facility could have multiple halls.

Halon Fire Extinguisher –– A fire extinguisher generally used on computers and electronic fires. It should not hurt the computer or destroy silicon chips. It is classed as a hypo-thermal chemical fire extinguisher.

Hand Truck — A small, hand-propelled vehicle used for transporting small loads. SEE FLOAT.

Hard Card — 1. Work order for labor or services. 2. Material handling contractor’s record of materials received or shipped.

Hardwall — A type of exhibit construction in which the walls are of solid material, rather than fabric.

Hard wire ––Mechanical terminations of bare end wire to electrical equipment.

Harmonized System –– International commodity description and classification referencing system. Formerly known as SCHEDULE B.

Header — A sign or other structure across top of exhibit. Usually displays company name. SEE ID SIGN, LIGHT BAR.

Heel and toe ––  To staple forming folds with sateen or other decorative material. A method of pleating.

High Drape –– High drape is any drape over 8’ high which requires special equipment. High drape is used to create dramatic areas such as stages or special focal points. Typically, high drape is dark blue velour and is 16’ to 19’ high, although vinyl or 11’ banjo drape in blue and other colors is often used. All high drape needs to be anchored securely on its framework to ensure it cannot fall.

High Jacker — A manufacturer of equipment capable of lifting a person or persons to a given height. A high lift or ladder generally used in focusing lights or adjusting rigging. ALSO KNOWN AS CHERRY PICKER, JLG, SCISSORS LIFT, GENIE LIFT.

HI LOW –– SEE FORKLIFT.

Hire — International term referring to "rent" a service or product.

Hold Harmless Clauses — Contract clauses that attempt to limit the liability of one party in case of a claim.

Hologram — A photographic effect using lasers to obtain a three dimensional image on a flat surface.

Horizontal Show — A show in which the products or services being displayed represent all segments of an industry or profession. Compare VERTICAL SHOW.

Hospitality Suite/Event — An event in the United States, usually separate from the exhibit, in which refreshments are served and exhibitor personnel and visitors socialize. Most shows require hospitality events to be opened only after exhibit hours.

Hotel Show — An exposition held in the exhibit space or ballroom of a hotel.

Hurty Gurty –– SEE GENIE LIFT.