
Add to Cart
ISO5 Laboratory Clean Room / class 100 Aluminum Clean room
Modular Clean Room is a kind of air purifying equipment providing partial high clean environment, it’s the easiest and fastest way to build a simple clean room. Equipped with a lot of clean level and space collocation, it can be designed as request. Main characteristics: easy to use, good flexibility, convenient installation, short construction time, movable. It can be installed in part of clean room of general level which requires high cleanliness to save cost.
Air Change Rates & Classification
Cleaning the air itself is usually not the most difficult part of maintaining a cleanroom environment. Keeping the air clean is the biggest challenge. And to keep the air clean, you need to keep it fresh.
The air change rate (or ACR) of a cleanroom is a key factor in determining its classification. “Air change rate” refers to how quickly the air inside a cleanroom is pumped through and replaced with newly filtered air coming in from outside the cleanroom. How long does it take for fresh air that is pumped into a cleanroom to be exhausted out and replaced?
For ISO Class 9 through Class 6 cleanrooms, ACR is calculated by changes-per-hour; for Class 5 through Class 1 cleanrooms, ACR requirements are measured in meters per second of airflow. For example, an ISO Class 8 cleanroom requires a minimum of 10 air changes per hour—the air inside the cleanroom will be entirely “new” every six minutes or less. In a Class 5 cleanroom, air must travel through the room (from the filter input to the exhaust ports) at no less than 40 feet per minute.
What would contaminate a clean room?
Any particle as small as one micron can contaminate a clean room. To put this into perspective, the thickness of a human hair is 100 microns. A primary source of contamination is exposed skin or hair. We provide employee¡¯s gowns, booties, masks and gloves as a precaution. The clean room also uses ventilation to prevent these contaminates from getting into the product packaging. After all, a motionless human, sitting or standing will generate 100,000 particles >0.3 micron in diameter per minute. Please see the chart below for examples of particles that are generated from people activity.