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HARDWALL CLEANROOMS

Microzone pre-engineered portable Hardwall Cleanroom enclosures feature a standard duty anodized aluminum extrusion framework with integral aluminum attachment mounting hardware and solid aluminum honeycomb core panels. Panels are also available with a 50-50 feature consisting of clear viewing panels on top and solid panels below, or for aseptic applications stainless steel below. Entrance and exit to the enclosures is provided by a hinged swing door with push/pull hardware. Either sliding or strip curtain access is also available. Clean air is delivered to the enclosure via our Clean-Ceil fan filter modules, which are integrated into a fully gasketed aluminum ceiling grid complete with integral cleanroom light fixtures. Venting of the enclosure is by means of an open air space around the bottom perimeter. An optional vinyl flap is also available to seal the opening when the room is not pressurized. Other optional venting methods include framed pre-filter openings or adjustable sliding vents. All units are factory assembled and pre-wired for easy site installation. Available in cleanliness classifications from ISO CLASS 4 to ISO CLASS 8. Consult ordering information chart for available sizes and other options.

Key Features of Product

  • Available in ISO CLASS 4 to ISO CLASS 8
  • Flexible designs
  • Air delivery via our Clean-Ceil Fan Filter Module
  • Easy to install
  • Energy efficient
  • Range of optional wall systems

If you would like to receive a proposal on your specific hardwall requirement, then simply complete our Hardwall Quote Request Form.  After review by our engineering personnel we will contact you if additional information is required.

TECHNICAL INFORMATION

Cleanroom Classifications

SI
(DYNAMIC)
U.S.
(DYNAMIC)
I.S.O.
(DYNAMIC)
E.U. GUIDE TO G.M.P.
GRADE DYNAMIC STATIC
M 2.5 CLASS10 CLASS 4      
M 3.5 CLASS 100 CLASS 5 A 100 100
M 4.5 CLASS 1,000 CLASS 6 - - -
M 5.5 CLASS 10,000 CLASS 7 B 10,000 100
M 6.5 CLASS 100,000 CLASS 8 C 100,000 10,000
- PHARMACEUTICAL - D N.C. 100,000
- N.C. - N.C. N.C. N.C.
CROSS REFERENCING AIRBORNE PARTICLE CLASSIFICATIONS
S.I. = INTERNATIONAL SYSTEM OF UNITS
U.S. = FEDERAL STANDARD 209E
I.S.O. = INTERNATIONAL STANDARDS ORGANIZATION
GMP = GOOD MANUFACTURING PRACTICE
E.U. = EUROPEAN UNION
N.C. = NOT CLASSIFIED

Laminar Airflow Versus Turbulent Airflow

We offer a range of contamination control equipment which have HEPA (High Efficiency Particulate Air) or ULPA (Ultra Low Penetration Air) filters as the final filtration stage. These filters are generally located as close as possible to the desired clean area i.e. in cleanrooms they are used as terminal ceiling filtration devices. In order to achieve unidirectional airflow (or laminar airflow) within an enclosed workspace, room or enclosure at the ISO CLASS 4 or ISO CLASS 5 cleanliness levels, careful attention must be paid to the ceiling layout - especially the lighting. At these cleanliness levels total HEPA/ULPA ceiling coverage is required and therefore the lighting is generally tear-drop (See Figure 1). Essentially, the airflow is “once-through” and all particulates or aerosols introduced into the airflow by personnel, equipment or processes are immediately swept out of the enclosure. The cleanliness level of the room is therefore maintained within the ISO CLASS 4 or ISO CLASS 5 thresholds at all times. For some applications, turbulent airflow (or non-laminar airflow) ISO CLASS 5 environments may be satisfactory (See Figure 2). In these cases when particulates or aerosols are introduced into the clean enclosure they will be recirculated within the enclosure, and the cleanliness level may temporarily deteriorate. The time frame for the room to purge itself (i.e. its recovery time) depends on many factors including the number of filtered air changes per unit time. For some clean storage or work areas where equipment or products are properly enclosed or shielded, this impingement or fall-out of contamination and the associated longer recovery times may be acceptable. The ISO CLASS 5 level is generally maintained within these turbulent airflow areas only during the “as built” and the “at rest” conditions.

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DFMZ Inc. - formerly Microzone Corporation
86 Harry Douglas Drive, Ottawa, Ontario, Canada  K2S 2C7
Telephone: (613) 831-8318 // Toll Free: (888) 636-8609
Fax: (613) 831-8321 // Email: sales@dfmzgroup.com
Copyright © 2016, Microzone Corporation