Laminar Air Flow Booth

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The Laminar Airflow Booth is used to create an area with a cleanliness level of Class 10 or ​Grade A by directing clean air in a unidirectional flow.


Features as below

  • Vertical and unidirectional air flow with the wind speed ranges ​between 0.36 – 0.54 m/sec. The cleanliness level of air is equivalent to ​A grade, and bring the air in the room to circulate within the Booth.
  • Ceiling type, with the external dimensions that in order to allow the ​laminar air flow to evenly cover the entire work area.
  • The internal and external structures are manufactured with 304 grade ​stainless steel or better.
  • The control booth has its external structure manufactured with 304 ​grade stainless steel or better. With a whole sheet of tempered glass ​assembled at the front of the control booth, for clear vision of the ​display devices and notifications alert of the operation to the users. In ​order to prevent the users from harm in the case of possible ​emergencies.

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Laminar Air Flow Booth

Product specification

  • The Laminar Air Flow Booth and the Control booth both have flat, smooth surface for the ease in cleaning ​and the prevention of germs and contaminants.
  • Come with anti-static transparent plastic strip curtains
  • The air circulation within the Laminar Air Flow Booth have fan with the specifications as listed below.


  1. Has supply fan installed on top of the HEPA filter sheet, and also come with HEPA filter altogether.
  2. The supply fan is an EC motor of a Centrifugal fan type, which is controlled by the controller, to ​automatically compensate the wind speed within the working area of the Laminar Air Flow Booth to ​remain in the range of 0.36 – 0.54 m/sec, in the case where the blockage of HEPA filter or the ​turbulent air flow occurs eventually after the usages of the Laminar Air Flow Booth.
  3. The supply fan is designed by prioritizes the maximum efficiency of the HEPA filter operation. The ​supply fan must also be designed to generate at least 1,200 m³/hr. of volumetric flow rate of air, in ​order to overcome the system’s static pressure of at least 145 to 680 Pa, as referred to the product ​specifications of the supply fan used in the design process.
  • The air filtration is designed with at least 2 steps of air filtration, with specifications of at least as listed ​below.


  1. The air within the Micro Limit Test room that has been drawn into the Laminar Air Flow Booth must ​be filtered with at least 1 sheet of Pre-filter of G4 grade or better, to extend the service life of the ​HEPA filter.
  2. The air that is filtered with the Pre-filter enters the Laminar Air Flow Booth must be filtered with at ​least 2 sheets of HEPA filter of H14 grade that is qualified to filter the air of not exceeding 0.3 ​Micron size for not less than 99.995 percentage or better.
  3. The filters used are designed to be easily replaceable from underneath the fan, without having to ​relocate the fan, for the ease in maintenance.

Laminar Air Flow Booth

Product specification

  • The Control booth include digital pressure gauge with specifications as listed below.


  1. A monitor display to show the pressure drop of the HEPA filter to indicate the status of the blockage of the ​HEPA filter in Pascal unit.
  2. The digital pressure gauge installed in front of the Control booth to notify the pressure drop values of HEPA ​filter to the users.
  3. Have an adjusting button to immediately adjust the percentage error occurred from the annual verification ​or calibration process on-site, in case the results of the percentage error exceeds the acceptable criterion.
  4. A limited access to the digital pressure gauge adjustment or configuration of the Laminar Air Flow Booth.
  • The system provides various operational status notifications through the display screen (HMI) with the ​following features:

  1. Light indicator installed in front of the Control booth to notify the users of the blockage of HEPA filter ​sheet. When the HEPA filter sheet has a pressure drop exceeds 450 Pascal, the light will notify the users ​that the HEPA filter sheet needs to be changed.
  2. Light indicators installed in front of the Control booth per 1 unit of fan to notify the users of operation ​status of fan. The light indicators also include a light indicator when the fan is working properly and a light ​indicator for when the fan is working abnormally.
  • The air purification unit has control icons located on the main screen of the display (HMI) as follows:

  1. An icon for controlling the power on/off.
  2. An icon for controlling the LED light on/off.
  3. An icon for controlling the air purifier settings.

Laminar Air Flow Booth

Product specification

  • The Control booth includes the controller of Laminar Air Flow Booth with the following features:.


  1. An adjusting button to adjust or configure the setup of the operation, and monitor screen to display the clear results of the operation setting when the Laminar ​Air Flow Booth is adjusted or configured. For the convenience of the users to change the setup of the operations to suit their working processes.
  2. A limited access to adjustment and configuration of the Laminar Air Flow Booth.
  3. Import-export data portal of RS485 type and LAN Ethernet type on the controller, for the stability during the data import and export processes.
  4. Support the data import-export to the Building Automation System (BAS) of Modbus Protocol type, with the important parameters for data recording (21 CFR ​Part 11) as followed;

- Pressure drop of the HEPA filte

- Operation status of the fan and the percentage of the fan operation

  • A portal for the release of testing substance and a portal for concentration checking of the ​released testing substance with regard to the HEPA filter Leakage Test by not releasing the ​testing substance afterwards
  • support the electrical system of 220 – 240 V at the frequency of 50 Hz.
  • Operate smoothly as usual after a power shortage or power outage occur, with the ​configured parameters remain unchanged.
  • There is a lighting system that can supply not less than 500 Lux within the Laminar Air ​Flow Booth. The workspace is equipped with a lighting system that provides appropriate ​and sufficient illumination for operations.
  • The operation of the Laminar Air Flow Booth not cause more than 85 dB of noise.
  • The Laminar Air Flow Booth is properly installed inside the Micro Limit Test room and able ​to function accordingly to the desired tasks
  • The Control booth installed in the Micro Limit Test room to allow the users to have a clear ​vision of the alerts or notifications of abnormal operation at the front of Booth. The ​abnormalities include the disfunction of fan and the blockage of the HEPA filter sheet ​status.
  • The design, manufacture, installation, and qualification must be done accordingly to the ​Notification of the Ministry of Public Health RE: Determination of specifications in ​regulations of modern medicine manufacture and adjusting the criterion and methodology ​used in traditional medicine manufacture, issued under the Drugs Law, B. E. 2559 or ​ISO14644-1, ISO14644-3, ISPE or other associated standards.

Laminar Air Flow Booth


  • Stainless Steel 304
  • EG Steel with powder coating
  • Stainless Steel 304
  • HEPA H14
  • 0.45 ± 20% m/s
  • Magnehelic gauge 0-750 Pa
  • Stainless steel port
  • ESD Foldable Type
  • ESD Overlan Type
  • Low capacity (commercial fan)
  • Smart Fan (High Capacity) with Fixed air velocity and detechable fan status (nomal/failure mode)
  • Hanging under ceiling
  • Mobile Type
  • Mobile Type with Battery

Internal Body

External Body


Filter System

Air Velocity

Filter Clog Gauge

Leak Test Port

Curtain


FAN




Installation


The working area size is designed according to the user's needs.


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