Description

Air Shower is a self contained chambers installed at entrance to cleanroom and other controlled environments. It minimizes particulate matter entering or exiting the clean space. Personnel and materials entering or exiting the controlled environment are “Shower” by high velocity HEPA-filtered air jets with velocities of 20-25m/s . Contaminated air is then drawn through the part then filtered and recirculated.

CTS is a supplier in air showers for demanding applications in the micro-electronics, semiconductors, pharmaceutical, spray-painting, and food markets.

Cleanroom Applications: the greatest source of particulate contamination in a cleanroom is the operators. Air shower is installed between change room and the cleanroom. The air shower enhances cleanroom operating protocol by serving as a reminder to all operators that they are entering a controlled environment. Personnel therefore develop the habit of gowning up properly before entering the air shower.

Product Highlights
• High velocity air jets nozzle in excess of 20 m/s ensure efficient scrubbing action to remove particulate matter.
• The air shower is constructed of electro-galvanised steel sheets with an abrasion resistant oven-baked epoxy powder coated finish.
• Mini-pleated HEPA filtration achieves > 99.99% typical efficiency at 0.3 micron particles.
• A disposable pre-filter with 86% arrestance extends the life of the main filter.
• Indicator lights mounted on both sides of the air shower exterior regulate traffic flow in and out of the cleanroom.
• Permanently lubricated direct drive centrifugal blowers are used in conjunction with stainless steel air jet nozzles.
• All electrical components are SIRIM approved / recognised.

One-Way

Personnel may enter the controlled environment but not exit through the air shower. At the idle state, the clean side door is locked while the grey side is unlocked. This mode of operation is useful for controlling traffic patterns into and out of the controlled environment.

Two-Way One-Way

Personnel may enter or exit the controlled environment through the air shower. When entering the controlled environment the shower is activated. When exiting the shower is disabled to reduce throughput time. The air shower program is able to detect if the person is entering or exiting the controlled environment via door sensors and a timesequenced control.

Two-Way

Personnel may enter or exit the controlled environment through the air shower. In both directions the air shower is activated. This mode of operation is useful in pharmaceutical and lab animal research applications to prevent the egress of hazardous substances and allergens from the controlled environment.