Does the subject want to ask "Under what circumstances do you need kitchen and smoke exhaust equipment for catering?" Small restaurants, take-away shops and food processing trucks don't need kitchen and smoke exhaust equipment.

1. Small food and beverage outlets: The food and beverage outlets are small in area, and only provide simple fast food or snacks, without cooking, stir-frying and other processing processes, and there is no need to set up a kitchen and smoke exhaust equipment.

2. Take-away shop: If the restaurant only provides take-away service, but does not provide in-room service, it is unnecessary to set up a kitchen and smoke exhaust equipment, but it is necessary to comply with food hygiene standards and fire safety regulations.

3. food processing truck: if the restaurant sells food in the form of food processing truck, it is unnecessary to set up a kitchen and smoke exhaust equipment, but it is necessary to comply with hygiene standards and fire safety regulations.