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Huizhou  Huixinlong Coating Equipment Co.,Ltd.

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Air Shower

Air Shower are self contained chambers installed at entrances to cleanrooms and other controlled environments.

  • Product Detail
  • Technical parameter
  • Application

    Air Shower are self contained chambers installed at entrances to cleanrooms and other controlled environments. 
    They minimize particulate matter entering or exiting the clean space. Personnel and materials entering or exiting the
     controlled environment are " scrubbed" by high velocity ULPA-filtered air ets with velocities of 20-25m/s (4000-4500fpm).
    Contaminated air is then drawn through the base within the unit, filtered and recirculated. 

    ZHUOWEI is a expert in air showers for demanding applications in the micro-electronics, semiconductors,
    pharmaceutical, spray painting, lab animal research and food researches


    1.Meet EN 1822 for H13 Performance.
    2.Microprocessor programming control, auto blowing. 
    3.Standard electric interlocking doors, automaticlly lock
    4.A disposable pre-filter with 85% arsenate extends the life of HEPA Filter.
    5.Made of SUS304 stainless steel, abrasion-resistant or oven-baked powder coated finish.
    6.Individually factory tested before shipment for safety and performance.
    7.Fully assembled delivery, ready to use when arrive customer. year warranty


    A Air showers are specialized enclosed antechambers which are incorporated as entryways of cleanrooms and other controlled environments to reduce particle contamination.[1] Air showers utilize high-pressure, HEPA- or ULPA-filtered air to remove dust, fibrous lint and other contaminants from personnel or object surfaces. The forceful "cleansing" of surfaces prior to entering clean environments reduces the number of airborne particulates introduced.


    When properly incorporated into cleanroom design, air showers provide an ISO-classified transition vestibule to ensure the cleanliness of the classified cleanroom. Air showers are typically placed between a gowning area and cleanroom; after workers don appropriate garb and personal protective equipment, they enter the shower so that the pressurized air nozzles remove any residual particles from coveralls. Once the program cycle is complete, users exit out through a second door, into the cleanroom. Air showers (or air tunnels) may also be placed between cleanrooms of different ISO ratings.


  • Design & functionality of Air Showers


    Air showers are generally constructed from cleanroom-compatible steel or plastic materials and feature electronically-powered blowers, filters and high-pressure jet nozzle the latter being incorporated into the walls and ceiling of the chamber. Air, at velocities of 3,000 to 7,000 feet-per-minute (FPM), continuously streams from the jet nozzles for 30–45 seconds, effectively removing loose particulate matter. Personnel inside the enclosure will lift their arms and turn their bodies for uniform exposure to the air streams, a procedure usually specified in protocol. Air currents from the jets create shearing and flapping  forces, which lift and remove contaminants from both flat surfaces and the creases of garments. HEPA filtraton within the air shower is capable of removing 99.97% of particles greater than 0.3umdiameter.

    Air is channeled within the air shower using a closed-loop system, where it is continuously re-circulated. Air is forced through a motorized filter/blower module into a large plemum, then into the shower through jet nozzles. Particle-laden, contaminated air is routed out of the shower compartment through floor vents  and returned to the filtration unit. This process ensures that only decontaminated air is used to remove particulates from personnel and other equipment, such as supply carts.

    Often, air showers are equipped with air ionizers to reduce static electricity  , as large volumes of high-velocity air create electric charges Since laboratory equipment, electronic measuring instruments and many hi-tech manufactured goods can often be damaged by electrostatic discharge , ionizers are essential in rendering material surfaces electrically neutral prior to entering the cleanroom.


     interlocking mechanisms are a common air shower feature to prevent both exits from being opened simultaneously, which would allow outside air to enter a tightly controlled environment. This requires occupants to stay inside until the decontamination cycle has completed. For this reason, safety features such as emergency storp  are required by most safety administrations. Alternatively, the air shower may consist of a long tunnel not equipped with doors; personnel slowly walk through to reach the controlled area. Air handling equipment creates an isolated atmosphere using pressure differentials  to create fluid boundaries between the inner and outer environments.


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