To improve disinfecting processing ability in a cargo chamber by providing ozonizers on the upper part in the cargo chamber and providing an air stirring means stirring air in the cargo chamber so as to diffuse the generated ozone in the cargo chamber, in a load carrying platform fr a truck formed into a box shape having the cargo chamber therein.

This truck 1 is a chill car carrying food for example, and it is provided with a box-shape load carrying platform having a cargo chamber 3 therein behind a cabin 2. In the cargo chamber 3, an evaporator for refrigerator (air stirring means) 5 blowing off cold air for refrigerating rearward is fitted to the upper part of the front side, and right and left a pair of ozonizers 6 are fitted to the rear side of it so as to be fixed to the top wall. The ozonizer 6 is constituted of a gas generating lamp 8 as ozone generating means in a housing 7, a micro-fan 10 for discharging generated ozone from the discharge port 9 of the housing 7, and the like, and the generated ozone is forcedly blown off in the cargo chamber 3 by the micro-fan 10.