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CLASS II or SMALL SAMPLING BOOTH is used for sampling small ​quantities of chemicals or for tasks that require cleanliness control, ​preventing chemical small substances from leaking or spreading to ​the operator.

Product specification

• Discharges clean, "Grade A" air as a unidirectional flow over the ​work area. The air is sanitized before leaving the cabinet, ​eliminating the need for an external vent. It also prevents air ​from escaping through the front, ensuring user safety from ​harmful substances, protecting products from contaminants, ​and safeguarding the environment from hazardous materials ​used in the workspace.
  

• The external dimensions designed to fit into the clean room, ​ensuring it can be installed easily and used effectively for ​intended tasks. Its design prioritizes user health and safety.
  

• Manufactured with 304 grade stainless steel or better for ease ​in cleaning.
  

• The external structure completely hermetic, with no voids, to ​prevent contaminated air from entering the work area and to ​ensure that harmful air from the work area does not escape ​into the environment without first passing through the air filter.
  

• The floor plate within the work area is designed with arch grill ​ports that have no sharp edges and are detachable. This ​design prevents harm to users during operation and ​facilitates easy cleaning. The arch grill ports are also designed ​to direct indoor air in a laminar flow, rather than vertically, to ​prevent contamination of products or substances within the ​Biological Safety Cabinet.
  

• Designed with armrest at the front of the work area to ​prevent the users’ arms from blocking the air-ventilation grill ​ports.
  

• The door is constructed with a single sheet of tempered glass ​that offers UV protection. This glass can be smoothly rolled ​up and down within the door frame, providing a clear view of ​the work area. The use of tempered glass ensures enhanced ​safety for users, reducing the risk of injury in case of an ​emergency.
  

• The air circulation inside the cabinet is maintained using an exhaust fan in conjunction with a ​HEPA air filter to purify the air, achieving a cleanliness level equivalent to Grade A.

• The air filtration is designed with 2 steps of air filtration.
  

- 70 percentage of air within the Cabinet is filtered with 1 sheet of HEPA filter of H14 ​grade which is design to be on top of the work area to protect the products or substances ​from contaminants.

- 30 percentage of air released from the Cabinet is filtered with HEPA filter of H14 grade ​which is designed to be on top of the Cabinet to protect the outside surroundings from the ​harmful products or substances within the work area.

- The HEPA filter sheet can be easily replaceable from underneath the fan, without having ​to relocate the fan, for the ease in maintenance.

• Air valve mounted onto the vacuum pump from outside located at side of the Cabinet, ​and another one mounted onto the gas pipe from outside located at the side of Cabinet.
  

• The work area have a pop-up outlet with ports of 3-pin socket to supply electricity to ​other devices.
  

• Support electrical system of 220 – 240 V at the frequency of 50 Hz.
  

• System operate smoothly as usual after a power shortage or power outage occur, with ​the configured parameters remain unchanged.
  

• The design, manufacture, installation, and qualification is 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.