1. Food production enterprises: including food processing plants, aquatic products processing plants, fruit and vegetable processing plants, etc. These enterprises need to package the food they produce for storage, transportation and sales.

2. Food sales enterprises: such as supermarkets, shopping malls and other food sales places, need to package and label food to meet food safety and hygiene requirements.

3. Catering enterprises: such as hotels, restaurants, fast food restaurants, etc. These enterprises need to use modified atmosphere packaging machines to package and preserve surplus food, so as to reduce waste and cost.

4. Home users: Some home users buy modified atmosphere packaging machines to package their own food, such as cakes, sweets, meat, fruits and vegetables.