Filter Air Shower

Filter Air Shower-An Ultimate Buying Guide by Sunnyda.

A controlled environment is always at the risk of contamination because of frequent entry and exit of personnel and products.

To reduce this risk, a Filter Air Shower is installed right before the controlled environment (like a semiconductor laboratory, pharmaceutical laboratory, pharmaceutical clean room, etc).

The filters are responsible for filtering the incoming contaminated air and preparing it for recirculation. Whereas the air shower mainly helps in cleaning the personnel and materials.

High-velocity ULPA filtered air jets are used for scrubbing the entering people and materials for the efficient removal of contaminants.

A Filter Air Shower mainly functions to decontaminate the clothing worn by the personnel and the material surfaces entering the controlled environment. For this, the dirt and the dust particles are cleaned off using a turbulent clean air jet at high velocity.

To share more about its working, benefits, application, etc, read this buying guide till the end to get answers to the most frequently searched questions.

Filter Air Shower Installed in Semiconductor Laboratory

What is a Filter Air Shower?

A Filter Air Shower is a metal-constructed unit having a door closer and a heavy-duty glass door that is installed prior to the controlled environment.

Its main objective is to control the entry of foreign agents into the controlled environment and reduce the inflow of harmful particulate matter that can hinder the process being carried out in the control environment.

For better durability and protection, the steel is smooth painted instead of using any plastic or wood laminate.

It is completely your choice if you want entire stainless steel construction or customizes the metal involved according to your application requirements.

There is a fine powder-coated paint finishing on the concealed air ducts for prolonged strength and durability.

Complete stainless steel construction is helpful in withstanding problems of shipping, installation, and misuse.

Other common problems often observed in a Filter Air Shower are joint damage, particleboard delimitation, or deterioration.

Sunnyda Double Door Filter Air Shower

What are the Features of a Filter Air Shower?

• Shower jets with high velocity and a running speed of 18 to 30 m/s for ensuring sufficient scrubbing action for the removal of particulate matter

• Programmable operating modes

• Microcontroller with versatile functioning

• Mini-pleated ULPA filter having 99.9999% efficiency at a particle size of 0.3 microns

• Disposable pre-filter having 85% arrestance for an extended main filter life.

• Emergency stop buttons on both sides

• Indicator lights on both sides for ensuring traffic flow regulation inside and outside

• Stainless steel air nozzles that are used with direct drive centrifugal blowers have permanent lubrication properties

Outstanding Features of Air Shower Booth

What are the Specifications of a Filter Air Shower?

• 1260 x 1000 x 2050 mm or 49.7″ x 39.4″ x 80.7″ (W x D x H) are the external dimensions

• 790 x 920 x 1930 mm or 31.1″ x 36.2″ x 76.0″ (W x D x H) are the internal work area dimensions

• 715 x 1835 mm (WxH) is the clean door opening dimensions

• 18-30 m/s is the air change rate which is equal to 137-227/Hr

• 18-30 m/s is the initial airflow velocity which makes 3,543 – 5,906 fpm

• 6 nozzles

• 1 person allowed per cycle

• Main filter filtration efficiency at 0.3 microns is more than 99.9999%

• 20% efficiency and 85% arrestance of the prefilters

• Non-washable and disposable polyester fibers composition of the prefilters

• 17W fluorescent lamp

• White oven-baked epoxy powder-coated finish or electro-galvanized steel construction

Clean Room Air Shower Design Specifications

What are the Components of a Filter Air Shower?

Some major components of the Filter Air Shower are given below:

Motor Fans:

Motor fans are radial fans with backward-curved blades that are powered by an EC motor and fitted with constant-flow control.

They are installed and replaced from below when the ceiling door is opened and the HEPA Filter Box is removed.

HEPA Filter:

HEPA filter class H13 (or higher if desired) with a flat seal (or fluid seal if desired), is secured to a welding painted frame. After opening the ceiling door, the filter is replaced from below (from the shower cabinet).

Grille:

A magnetically fastened grille made of a perforated painted steel sheet protects the pre-filter.

Cabinet:

The cabinet is constructed with R panels that have been filled with mineral wool. Steel panels in the RAL9002 semi-matt hue are used (optionally in a different shade).

Ducts:

In the corners of the cabinet, corner ducts with nozzles are placed. Each duct comprises eleven nozzles with a minimum internal diameter of 25 mm, through which air is blasted at a mean axial velocity of 25 m/s toward a person standing in the cabinet’s center.

PIR Motion Sensor:

A unique key is required to unlock the clean room ceiling. It is equipped with a single nozzle and three LEDs. In the ceiling panel adjacent to the entrance, a PIR-motion sensor is installed.

Doors:

The doors are constructed as a pair of single-leaf doors that cannot be opened simultaneously, allowing the air shower to double as an airlock. The door is framed in aluminum and finished in polyester in a semi-matt shade.

Floor:

The floor is constructed using stainless steel. It is also suggested to use cleaning mats.

A Switchboard:

A switchboard is also present to control the electrical power and supply.

Rapid Responsive Filter Air Shower Controller

What are the Different Models Available for a Filter Air Shower?

The two different models available for a Filter Air Shower are:

Low or Standard Model: 1300 × 1900 × 2820 (L×W×H)

High or Upgraded Model: 1300 × 1500 × 3020 (L×W×H)

Clean Room Air Shower Standard Model

What are the Benefits of a Filter Air Shower?

A Low Profile Model:

It comes with side-mounted blowers or filters which decrease the overall height, enabling easy movement through areas with short spaces.

LED Lights:

Excellent quality LED lights are installed in Filter Air Shower to allow easy and clear visibility and also save on power usage. You can go for manual or automatic operation of these lights using the touchscreen control panel.

Emergency Bypass Button:

The emergency exit button allows the user to instantly switch off this unit, and to free the doors. This state of the doors is also occupied as a safety measure for the user in case of a power outage.

Variable Nozzles:

The nozzles on the ceiling and walls which are adjustable support the supply of HEPA filtered air in various directions at a high velocity for removing contaminants from the user or products prior to entering this area.

Gauge:

To know about the filter saturation, you can use the gauge which tells about the backpressure formed at the dirty side of the HEPA filter.

You can also get an alert about the right time for replacing the HEPA filter through the control panel settings.

Touchscreen Control Panel

It comes with a touchscreen control panel operation to provide ease and simplicity in its usage. It indicates the running time, delay time, and various other functions.

Ultra-Speed Vinyl Door Airlock:

For easy and fast transport of parts into the clean room, high-speed doors are the best choice. To eliminate the contaminating particles from different surfaces, high-speed HEPA filtered air works well.

A ULPA Filtered Air Curtain for Enhancing Protection of the Micro-Filtered Air:

To keep your controlled area safe from ambient air and contamination particles, a flow of ULPA filtered air is perfect.

You can trap 0.12 micron-sized particles with a 99.999% filtration efficiency using this ULPA filtered air curtain.

Emergency Bypass Button of Air Shower Clean Room

What are the Applications of a Filter Air Shower?

• Pharmaceutical Laboratory

• Micro-Electronic Fabrications

• Pharmaceutical Clean Room

• Micro-Electronic Production Units

• Semiconductor Clean Room

• Research Laboratories

• Medical Clean Room

Air Sower Room Applications

What is the Configuration Advantage of a Filter Air Shower?

The Filter Air Shower may be designed with 90-degree left or right-handed doors for installations when straight-in showers do not fit into the available space.

A three doors Filter Air Shower is for the left or right-handed entrance or exit combinations. Usually, there is one entrance door and two exit doors leading to two distinct clean rooms.

Multiple Units Tunnel

A longer unit may be created by combining two or more Filter Air Shower. It is possible to increase the capacity while still retaining an optimal nozzle location by adding sections.

Continuous flow cleaning is a popular application for tunnels.

The tunnel design may be created by combining it at 90-degree angles with those that go straight through.

Motion-activated tunnels are frequently employed when a large number of individuals need to be cleaned quickly and in a continuous stream, such as at the start of a shift.

As soon as a person enters the Filter Air Shower, the cleaning cycle begins. It is activated while people are present and deactivated when there are no more visitors.

Options:

• A motion-activated switch and VFDs 

• A cart that may be placed on the floor to hold items

• Parts for cleaning

• Different sizes, forms, and combinations are available for cleaning its parts.

ADA Compliance

Wheelchair users may easily turn around in the Filter Air Shower provided by the CAP701 Series ADA-compliant units.

90-degree and straight-through variants are provided for both the left and right-handed users.

What Does the Automatic Operation of a Filter Air Shower Include?

• Automatic Fan Start on Personnel Entry

• Automatic Cleaning Time Setting

• Automatic Fan Shut Down Before Personnel Entry

• Automatic Door Locking and Unlocking

Automatic Blowing Clean Room Air Shower

What is the Ventilation Function of a Filter Air Shower?

When the user enters this space, the nozzles of the Filter Air Shower start blowing clean air at a high velocity and a large impact. This clean air traps all the contaminating particles and sends them into the filtration system.

Meanwhile, the suction chamber receives the prefiltered air and the inlet grid receives the recirculated air, from where the pressure chamber receives this prefiltered air with the help of the radial fans.

Now, this air starts moving back into the Filter Air Shower. This leads to a high cleaning effect, the most suitable cleaning time measure is around 15 seconds.

What Does the Filtration System of a Filter Air Shower?

The filtration system of Filter Air Shower involves the following things:

• The Filter

• Contaminated Air

• Blower

• Filtered Air

When using the Filter Air Shower, the blowers drive air through ULPA filters that are 99.9999 percent effective in filtering particles as small as 0.3 microns in size.

Using nozzles, filtered air is propelled into the chamber at a rapid rate. These turbulent airflows disperse particulate matter across a wide variety of surfaces.

In the chamber, particulate matter scattered in the air stream migrates downward and into the lower regions of the chamber.

The flow of air into the blower supply plenum is controlled by the presence of pre-filters situated at the chamber’s base.

The air is cleaned and recirculated on a continuous basis. As a self-contained machine, the Filter Air Shower does not need to exchange air with its surroundings.

Industrial Air Shower Blower System

What is the Operating Sequence of a Filter Air Shower?

One-Way:

Using the Filter Air Shower, the user may enter, but not exit, the regulated environment, and vice versa.

The clean side door is locked when the air shower is in suitable condition, however, the grey side door is not.

In order to regulate the flow of traffic into and out of the restricted environment, this operational mode is perfect.

Two-Way One-Way:

The Filter Air Shower is for the entrance and exits the controlled environment. Its program utilizes door sensors and a time-sequenced control to determine when a person enters or exits the controlled area.

Two-Way:

Filter Air Shower is used to enter and exit the restricted environment. It is activated in both directions.

This mode of operation is advantageous in pharmaceutical, laboratory, and industrial clean room research applications because it prevents harmful compounds and allergens from egressing from the controlled environment.

One Way Air Shower for Clean Room

How to Enter the Controlled Environment from the Filter Air Shower?

Operational Mode:

• Every indicator light is lit up in green

• Fan speed has been lowered

• The lights are on

On Entering:

• Opens the door into the grey chamber on the side of the person

• Clean room side signal light becomes red

• The door to the clean room is closed

• The grey room side of the door is unobserved

• The light grey side of the room has a green signal

• Fan speed has increased

During Working:

• For 15 seconds, the fan runs at a faster speed

• In the clean room, a signal light becomes green

• Finally, the door to the clean room is unlocked

On Leaving:

• The grey-room side door is locked

• The bright grey room side of the signal is red

• The clean room side signal light is green

• The clean room side door is opened by a person

• The user steps out from it

• Finally, the clean room side of the door should be closed

Follow the Protocols Before Entering Air Shower Room

How to Exit the Controlled Environment from the Filter Air Shower?

Filter Air Shower Operational

• The traffic lights are all turning green

• Fan speed is decreases

• The lights are on

Entering the Filter Air Shower

• Opens clean room door by someone

• A lockable door is located on the grey room side of the house

• Signal lights on the grey side of the room become red

• After stepping into it, the person locks the door behind them

Side of the Clean Room

• The door to the clean room is closed

• Clean room side signal light becomes red

• The grey room door on the left side of the room is unlocked

In the Filter Air Shower

• The fan has been turned off

Leaving the Filter Air Shower

• The side door of the grey room is unlocked

• The door to the clean room is closed

• The light grey side of the room has a green signal

• The clean room side signal light turns red

• The grey room door on the left side of the room is unlocked

• As the person steps out of the wet room, they close and lock the side door

• Fan speed has been lowered

• The two traffic signals become green simultaneously

• No longer does the Filter Air Shower need to be shut down

Follow the Given SOPs While Leaving Air Shower Booth

How to Install your Filter Air Shower?

• Clean the installation site and mark the dimensions.

• Measure the ends and sides of the parallel wall pocket for locating the position of the sill plates.

• Using screws attach a sill plate to the floor.

• Fit the wall section on top of the floor sills and secure using a pipe clamp.

• Take out the mechanical enclosure panels and plug the connectors together,

• The seal between the walls and the roof, align the corners and replace the mechanical enclosure.

• Hang the doors and pre-wired power panel.

• Connect to the power source.

• Refer to the user manual that the clean room manufacturer has provided.

Clean Room Filter Air Shower Installation

What is the Warning Information for a Filter Air Shower?

• For lowering the chances of electric shock, fire, and personnel injury use this Filter Air Shower only according to the instructions given by your manufacturer.

• Before cleaning or servicing it, turn off the service panel power.

• Also, lock the service disconnect for preventing the accidental switch back on of the system.

• If you are unable to lock the service disconnect, paste a warning sign on the service panel that is clearly visible to the users.

• Only qualified and licensed people should take care of the electric wiring and installation work using standard codes and instruments only.

How to Maintain your Filter Air Shower?

For the maintenance of your Filter Air Shower, follow these instructions:

• Inspect the primary filter every month and repair any damages immediately.

• Once a year, carry out inspection of the HEPA filter and replace if required.

• Check the lag bolts for the roof after every year and tighten them properly to make sure that they are not loose to fall off.

• After every 3 months, inspect the door closer and adjust according to your application requirements.

• Make sure that the door sensor switches are properly aligned and fully functional.

• Look for any damage to the door hinges and replace them when required.

• Also, ensure the proper alignment of door lock amateurs.

• Every month carefully inspect locking nuts on the air nozzles.

• Check the fluorescent lamps properly and ensure they are properly working.

Maintenance of Filter Air Shower

What Does the HEPA Filter Replacement of a Filter Air Shower Include?

To replace the HEPA filter of your Filter Air Shower, the correct procedure that should be followed is explained below:

• Remove the outside access panel door by unscrewing the bolts with a flat-head screwdriver from the outside of it. This enables access to the HEPA filters inside the panel door.

• Now detach the door by unscrewing the bolts on the inner panel door using a head screwdriver.

• A screwed-in polycarbonate shim secures the HEPA filter in place. Remove the shim by unscrewing these bolts.

• Slide-out and remove the HEPA filter using only the edges.

• Replace the HEPA filter by sliding it in.

• With the polycarbonate shim, secure the new replacement HEPA filter in place.

• Replace the panel door on the interior and the panel door on the outside access panel.

Clean Room Air Shower HEPA Filter Replacement

What are the Safety Instructions for Using a Filter Air Shower?

• Avoid keeping any flammable substances inside the Filter Air Shower.

• Always use safety glasses to prevent the entry of any flying particles directly into your eyes.

• Do not lean against the air nozzles.

• Do not abuse the equipment as it may cause serious injury to the occupants. This includes not forcing the doors open when they are locked or attempting to obstruct the air passages.

• Before using the Filter Air Shower, make sure it is fully functional, has no damages or service requirements.

• Do not service without turning off and locking out the disconnect switch.

• Only use identical replacement parts when servicing.

• Keep at least 1 inch of distance from any heating device or furnace.

• Avoid adding any liquid substances into the air circulating system.

Wear Proper PPE Before Using Air Shower Room

What is the Troubleshooting Guide for your Filter Air Shower?

Troubleshooting your Filter Air Shower comprises many important measures including the following:

• If it does not operate, verify that the circuit panel that supplies electricity is turned on.

• Verify that the disconnect switch on the panel is turned on.

• Check the voltage at the disconnect switch and that suitable power is being supplied to all three connections.

• Make sure that the emergency switch is in the on position or in the pulled-out position.

• Check the transformer’s fuses to ensure they are not blown.

• Verify that the magnets on the top of each door are aligned properly and that the sensor switches are turning on and off.

• Examine the terminals on the motor starter and disconnect any that appear to be loose.

• Make sure that an adequate supply of light is provided.

• Check the transformer’s primary and secondary fuses.

• Inspect the lights of your Filter Air Shower to ensure that the pins are secure and in their proper locations.

• If the lock is inoperative, verify that the magnet on the top of the door is aligned with the door sensor switch at the top of the door opening.

• With the magnet, check the armature’s alignment on the door and adjust as needed.

• Remove the lock’s electrical access cover and check that 24VDC is present at the lock’s power connections.

• Verify the blower’s rotation. If required, reverse any two leads on the load side of the motor starter.

• Examine the connection between the HEPA filter plenum and the blower for damage.

• Inspect the return air flex duct for damage or disconnected connections to the plenum or blower intake.

• Inspect the primary filters and medium filters to see if they need to be replaced.

Troubleshooting of Air Shower Clean Room

How to Customize your Filter Air Shower?

• You can add an air cooler to your system to compensate for the fan heat.

• Install an ionization device for lowering electrostatic particle adhesive force.

• Add a door partition, ceiling, and wall elements.

• Use U15 or U16 filter cells for maximum filtration results.

• Integrate the control cabinet in the module or either set it up externally.

• Complete 316L stainless steel construction.

• Automatic entry control features include cars, badges, and codes.

• Sliding door for maximum user compliance and protection.

• Visual and LED alarms for safety.

Customized Air Shower Booth for ISO Class 3 Clean Room

Conclusion.

Air showers and pass thrus are extremely helpful in preventing the entry of dust, dirt, or other foreign particles into the controlled environment.

But the most important thing to consider when using a Filter Air Shower is to use it the right way. You must be aware of its correct opening and closing protocols.

Also take care of its regular maintenance, servicing, and repair. Before using, check if the components are fully functional and the filters and nozzles are not clogged with dust or dirt.

CE Certified 100% Quality Tested Air Shower