In fact, the general meaning of so-called biological or industrial cleanrooms is quite similar, differing only in that one controls life particles while the other controls non-existent life particles. In simpler terms, cleanrooms are designed to isolate external contaminants.

Contaminants in a dust-free workshop settle to the ground due to the weight of their mutual attraction, thereby reducing the pollution index in the air. So, what can we do to control and repel dust intrusions?

Cleanroom operations under pressure should adhere to the following principles:

If the cleanliness of the cleanroom falls below the surrounding areas.

2. The portals within the interconnected areas of the cleanroom must face towards higher-grade clean spaces.

The gas pressure in the dust-free workshop must be higher than the cleaning pressure.

The differential pressure in a cleanroom relies on the new air volume, which can compensate for air leakage. Therefore, the differential pressure in a cleanroom refers to the resistance of air passing through the gaps in the cleanroom.

Compared to the turbulent chamber in a cleanroom, the indoor temperature is generally diluted with gas, which requires the following for indoor air velocity.

The exhaust air speed in a clean room should not be too fast, with a relative speed requirement slower than that of the air conditioning indoors.

The gas flow rate in parallel within the dust-free workshop should not be too high; it's difficult for surface particles to return.