March 16, 2017

Air Shower

Air showers are specialized antechambers which personnel must pass through before entering cleanrooms in order to decontaminate. Decontamination is done by clearing off dust and dirt particles from bodies of cleanroom personnel to minimize contamination of equipment or products.


Designs to an air shower unit include single-side shower, double-side shower, three-side shower, and top shower. Air velocity should be in and around 25 m/s through nozzles. HEPA filters are generally used to filter out particles greater than 0.3 > in size from the shower air.


Air showers are considered essential equipment in fields where sterile or dust-free conditions are critical, such as life science and biomedical research, pharmaceutical, parenteral drug, microelectronics, aerospace and some precision manufacturing.

General Specification of Air Shower

Description AIR SHOWER
Material of construction M S Powder coated
Model NC AS—01 entry
Type Side Blower
Supply Filter HEPA FILTER Construction H-14
Efficiency : 99.99% DOWN TO 0.3
Pre—Filter Initial Filter 4 PLY HDPE,
efficiency 95% down 10
Motor blower assembly Electrical motor, 01 no.
2800 RPM, FRP Blower with ‘AL’ impeller
7 ” x 4 ½ ” Dia impeller
Double shaft type motor
Vibration 1 to 2 micron
Noise level 75 db when measured from 1 meter
Velocity 30+/-2 m/s
Electric supply 415 V, three phase, 50 Hz
Others 20 W Fluorescent tube,
Hinge door with glass window.
Electro Magnetic interlocking with EMO.
One door will open at a time.
Adjustable timer