From a manufacturer who build up the clean room facility, who will use the clean room facility and who will take charge the maintenance of the clean room facility.
The purification system of the clean room shall have at least the initial, medium and HEPA system at the end section.
Air supply of the clean room project should be having enough air supply capacity. The air supply volume can not only eliminate the indoor residual heat and humidity, but also ensure that the temperature and humidity under control within the standard requirements. And dilute the indoor particle pollution within the required range. To ensure the indoor cleanliness requirements.
The clean room must be established and maintained with the necessary relative pressure difference. (Positive pressure and negative pressure.)
Clean room shall have reasonable air flow type to ensure indoor cleanliness, temperature and humidity.