Which industries use modular cleanrooms?

Many industries need controlled environments, but they control different contaminants. Modular construction can provide a configurable enclosure, yet contamination-control requirements still come from the process and applicable standards.

Why Do So Many Industries Use modular cleanrooms?

Contamination takes several forms, and each form affects products and processes differently. The categories below outline the main mechanisms that drive cleanroom design across industries.

Contamination can affect products and processes differently

Airborne particles

Non-viable particles can cause defects in semiconductors, optics, and precision assemblies.

Microbial contamination

Viable particles may pose risks in pharmaceuticals, biotechnology, medical devices, and selected food applications.

Chemical and molecular contamination

Airborne molecular contamination can affect lithography, optics, and certain pharmaceutical processes; iso 14644-8 addresses chemical concentration.

Electrostatic and environmental conditions

ESD can damage electronics, semiconductors, and aerospace components where process steps are sensitive.

Why companies may choose modular construction

Modular construction may reduce site disruption in some projects, support phased expansion, and allow reconfiguration if designed for disassembly.

What modular construction does not determine

Modular construction is a delivery method, not a cleanliness level or regulatory status.

Industries That Use modular cleanrooms — Quick Comparison

The table is illustrative; each project requires its own assessment.

Pharmaceuticals and Biotechnology

For applicable sterile/GMP-regulated operations, controls may include microbial monitoring, personnel qualification, and cleaning validation. EU GMP Annex 1 defines Grades A–D for sterile medicinal-product manufacturing.

Where modular cleanrooms may be used

Modular cleanrooms may suit aseptic processing, sterile manufacturing, and selected laboratory operations.

What pharmaceutical buyers need to define

Product and process type

Contamination risk depends on whether the product is sterile, non-sterile, liquid, powder, or biologic.

Sterile versus non-sterile operation

For EU GMP sterile manufacture, RABS or isolators should be considered within the contamination control strategy; alternatives require justification.

Occupancy state and cleanliness requirement

Annex 1 requires classification in at-rest and in-operation states, with risk-based additional critical sampling locations.

Personnel and material flows

Transfer of materials and personnel is a major contamination source requiring controlled flows.

Environmental monitoring and documentation

For applicable sterile/GMP-controlled operations, a documented monitoring programme covering viable and non-viable particles is expected.

ISO classification is not the same as GMP compliance

iso 14644-1 classifies airborne particle concentration only; GMP adds microbial, personnel, documentation, qualification, and contamination-control strategy requirements.

Medical Device Manufacturing

Medical device cleanroom requirements vary by product sterility and process sensitivity. The FDA QMSR became effective February 2, 2026, and incorporates ISO 13485:2016 by reference.

Typical controlled-process applications

Applications include implantable device assembly, catheter manufacturing, sterile packaging, and component cleaning.

Requirements that may drive cleanroom design

Product contamination risk

Devices contacting sterile body sites have higher contamination-risk profiles.

Manufacturing and packaging process

Assembly, bonding, and packaging each present different contamination mechanisms.

Personnel/material movement

Personnel gowning, component transfer, and waste removal create contamination vectors.

Cleaning and monitoring programme

Where contamination control is required by device/process risk and the QMS, define appropriate cleaning and monitoring controls.

United States localization — current QMSR context

QMSR is a quality management system regulation; it does not itself prescribe a universal cleanroom ISO class.

Semiconductor and Microelectronics Manufacturing

Semiconductor processes can be highly sensitive to particles at process-relevant sizes. The Deiiang company-published Jingxin case describes a cleanroom/clean-booth project for semiconductor wet-cleaning processes.

Typical applications

Controlled environments support wafer cleaning, lithography, deposition, etching, metrology, and packaging.

Controls beyond an ISO class

Particle control

Particle size and concentration requirements are defined by the project.

Temperature and relative humidity where process-critical

Temperature and humidity stability requirements vary by process step.

ESD considerations

ESD control can be critical for applicable devices and process steps.

Airflow around critical workstations

Localized unidirectional airflow may be specified where justified by the process.

Chemical/exhaust integration where required

Solvent, acid, or chemical processes may require exhaust integration affecting layout and pressure cascades.

Why modular cleanrooms can fit existing semiconductor facilities

Modular construction can be considered for localized upgrades within existing facilities; actual disruption depends on site integration.

Electronics and Precision Manufacturing

Electronics manufacturing includes PCB assembly, component fabrication, and product integration. Sensitive processes may benefit from controlled particulate and ESD environments.

Potential applications

Applications include SMT assembly, wire bonding, precision cleaning, coating, and final assembly.

Key design questions

Buyers should define ESD sensitivity, particle sensitivity, humidity needs, and chemical exposure.

Avoid automatic ISO-class assumptions

Electronics manufacturing does not have a single standard ISO class; the process defines the requirement.

Optics, Photonics and Laser Applications

Optical manufacturing may require control of particles, temperature, humidity, and vibration. Surface contamination can degrade optical performance.

Example operations

Operations include lens polishing, optical coating, laser diode assembly, and fiber coupling.

Important specification variables

Particle sensitivity

Particles can affect scattering, absorption and optical performance.

Temperature stability where required

Precision optical alignment may require application-specific temperature stability.

Humidity requirements

Humidity control may be needed for process stability or condensation prevention.

Vibration or process-equipment interfaces

Optical assembly and metrology equipment may be vibration-sensitive.

Aerospace and Other High-Precision Manufacturing

Aerospace manufacturing involves contamination-sensitive sensors, optics, electronics, and precision assemblies. Requirements are driven by component sensitivity and customer specifications.

Potential applications

Applications include inertial sensor assembly, optical payload integration, and flight-critical electronics.

Why requirements are project-specific

Aerospace components vary widely in contamination sensitivity; each project requires its own assessment.

Research, Laboratories and Pilot Production

Research and pilot facilities often need controlled environments accommodating changing protocols and equipment. Flexibility can be an important design objective.

Typical use cases

Use cases include selected contamination-sensitive research, analytical laboratories, pilot bioprocessing, and prototype assembly.

When flexibility matters

Modular cleanrooms suit shifting research focus, equipment upgrades, or potential relocation.

Food, Beverage and Cosmetics

Food, beverage, and cosmetics manufacturing may use controlled environments for hygiene and product quality. In many food applications, hygiene and microbiological hazard control may be more relevant than ISO particle classification.

Possible applications

Applications include selected filling, handling or packaging processes where contamination control is justified.

Separate hygiene requirements from ISO particle classification

Codex General Principles of Food Hygiene CXC 1-1969 provides a GHP/HACCP framework, distinct from ISO 14644 particle classifications.

Evidence requirement

Documented cleaning, sanitation, microbial testing, and hygiene practices may be more relevant than particle counts.

How Cleanroom Requirements Differ Between Industries

Primary contaminant concerns shift by industry and process. A single industry label does not establish one universal requirement.

What contaminant needs to be controlled?

Non-viable airborne particles

Particle control is a common requirement across many contamination-sensitive processes, classified under ISO 14644-1.

Viable or microbial contamination

Microbial control may require cleaning, disinfection, gowning, and environmental monitoring depending on process and applicable requirements.

Molecular or chemical contamination

ISO 14644-8 addresses assessment of air cleanliness by chemical concentration where relevant.

Foreign material and ESD risks

Foreign material and ESD are distinct from ISO particulate cleanliness.

What environmental variables matter?

Airflow rate/pattern, pressure, temperature/RH, vibration or other parameters where process-critical.

What ISO class is required?

ISO class should be determined by process risk, product particle sensitivity, customer specification, regulatory framework, critical operation, and required occupancy state.

Which occupancy state is required?

The required occupancy state must be specified; ISO 14644 recognizes as-built, at-rest and operational conditions. EU GMP Annex 1 requires classification in at-rest and in-operation states.

What operational controls are required?

Gowning, cleaning, material transfer, and monitoring affect achieved cleanliness.

When Modular Construction May Be a Good Fit

Modular construction is not universally superior; it offers advantages in specific scenarios.

Existing facilities needing a localized controlled environment

Modular construction may allow phased or localized construction, depending on site conditions and integration requirements.

Production processes expected to change

Some modular systems are designed for reconfiguration; actual ease depends on panels, HVAC, utilities and process equipment.

Localized higher-cleanliness processes

Stricter cleanliness within a larger area may use modular enclosures with localized filtered airflow.

Pilot lines and phased manufacturing

Pilot production often needs controlled environments without full-scale cleanroom commitment.

Facilities considering future relocation

Modular cleanrooms may be designed for disassembly and reuse; relocation typically requires recommissioning and reclassification.

When modular construction may not be the best fit

Stick-built construction may suit extensive building integration, large process equipment, complex exhaust/utilities, containment, or structural constraints.

Deiiang Semiconductor Case Example — Jingxin Semiconductor, Huangshi

The following figures are taken from a Deiiang company-published case page and are project-specific, not semiconductor industry defaults.

Company-published project facts

The company page reports published building/project area: 1,500 m²; ISO 6 core area; local iso 5 at critical workstations; 20–24°C; RH 45%±5%; MAU+ffu system; third-party at-rest and operational testing referencing ISO 14644 and IEST standards.

Application

The company page describes wet cleaning, surface treatment, and related front-end processes for 8-inch and 12-inch wafers.

Published project challenges

Existing-workshop airflow conditions

The company page states that CFD simulation was used to plan the FFU array layout.

Construction within an operating production environment

The company page describes segmented physical isolation and negative-pressure construction during ongoing production.

Published Deiiang solution

MAU + FFU airflow concept

The company page reports an MAU+FFU system.

Filtration arrangement

The company page reports a three-stage filtration system (primary, secondary, HEPA).

Local iso class 5 enhancement

The company page reports additional FFUs at critical workstations within the reported ISO 6 core area.

Airflow-layout engineering

The company page reports CFD-informed FFU layout for unidirectional laminar flow.

Testing and acceptance evidence

The company page states that an authorized third-party agency performed static/Dynamic testing including at-rest and operational particle verification, airflow velocity uniformity, filter integrity, temperature/humidity stability, and anti-static surface resistance.

Project photographs and diagrams

The company page includes a layout diagram; readers should refer to the original page.

What readers should learn from this case

This case illustrates one specific application; it does not establish requirements for other projects or industries.

Regional and Regulatory Context

ISO provides international cleanroom standards; FDA, EU GMP, and other frameworks impose sector-specific or regional requirements that cannot substitute for each other.

International — ISO 14644 framework

iso 14644-1:2015

Classification of air cleanliness by particle concentration.

iso 14644-3:2019

Test methods for cleanrooms and clean zones; three possible occupancy states are as-built, at-rest and operational.

iso 14644-4:2022

Specifies the cleanroom creation process from requirements through design, construction and start-up.

iso 14644-5:2025

Specifies requirements for an operations control programme covering personnel/material movement, cleaning, maintenance and monitoring.

United States

Pharmaceutical and sterile-drug applications

FDA aseptic processing guidance applies to applicable sterile drug and biological product manufacturing.

Medical devices

QMSR became effective February 2, 2026, incorporating ISO 13485:2016 by reference.

European ｕｎｉｏｎ / EEA

Sterile medicinal products

For applicable EU sterile medicinal-product manufacture, Annex 1 defines Grades A–D and contamination control strategy requirements.

Other regions

Requirements vary by jurisdiction and product category; verify the applicable national authority or customer standard before design.

How to Specify a Modular Cleanroom for Your Industry

Start from the process and acceptance requirements, not from the industry label alone.

Define the process

Document operations, equipment, materials, personnel, and expected durations.

Define the required cleanliness condition

Specify ISO class, particle sizes, and whether microbial or chemical control is needed.

Define environmental conditions

Specify temperature, humidity, pressure, airflow, vibration, and acoustic constraints where process-critical.

Define facility constraints

Document space, ceiling height, structure, utilities, and access limitations.

Define enclosure and access requirements

Specify materials, doors, pass-throughs, viewing panels, and gowning areas.

Define monitoring and controls

Define required parameters, frequencies, alarms and records according to process, standard and risk.

Define testing and handover requirements

Distinguish ISO 14644-1 classification from applicable ISO 14644-3 supporting tests.

Define commercial scope

Clarify design, equipment, installation, testing, documentation, training, and warranty inclusions.

Modular Cleanroom Industry Selection Checklist

This is a pre-purchase screening aid; it does not ｒｅｐｌａｃｅ engineering design.

Process checklist

• What operations will be performed?
• What contamination mechanisms matter?
• What is the product’s sensitivity?

Technical checklist

• What cleanliness classification or sector-specific grade, if applicable, is required?
• What temperature, humidity, and pressure conditions apply?
• What airflow pattern is needed?
• Are chemical, vibration, or acoustic requirements present?

Facility checklist

• Where will the cleanroom be located?
• What dimensional constraints exist?
• What utilities are available?
• Is installation within an operating facility?

Commercial checklist

• What is included in the quotation?
• What documentation and testing are provided?
• What are warranty and service terms?
• How will future expansion be accommodated?

Industry-to-Requirement Decision Guide

Use this sequence to translate process needs into a specification basis.

Step 1 — Identify the critical process

Define operations where contamination affects product quality or yield.

Step 2 — Identify the contamination mechanism

Determine whether particles, microbes, chemicals, ESD, or combinations pose risk.

Step 3 — Identify applicable standards or regulations

Identify applicable cleanroom standards, regulatory frameworks and customer requirements (e.g., ISO 14644; FDA CGMP/QMSR where applicable; EU GMP Annex 1 for applicable sterile manufacture).

Step 4 — Establish required environmental conditions

Define temperature, humidity, pressure, airflow, and special conditions.

Step 5 — Decide whole-room vs localized control

Determine whether full-room, localized clean zone, separative device, or no ISO cleanroom is justified.

Step 6 — Establish testing and acceptance criteria

Define tests, methods, and acceptance criteria.

Step 7 — Request normalized supplier proposals

Request proposals with defined scope, specifications, testing, and exclusions.

Common Mistakes When Selecting an Industry Cleanroom

These errors can distort specifications and procurement comparisons.

Choosing an ISO class from the industry name alone

Industry labels do not determine ISO class.

Assuming ISO classification equals regulatory compliance

ISO addresses particles; GMP adds microbial, validation, and documentation requirements.

Using a universal ACH or FFU count

Air change rates and FFU quantities depend on room, heat load, and particle generation.

Ignoring temperature, humidity or equipment heat load

Equipment heat load affects cooling and airflow requirements.

Comparing equipment-only and turnkey quotations

Equipment-only quotations may exclude installation, testing, and documentation.

Assuming hardwall or softwall determines ISO class

Wall type is construction, not cleanliness determination.

Treating a company case as an industry standard

A published case describes one specific application only.

What Information Should You Send a Modular Cleanroom Supplier?

Early information helps suppliers respond with relevant scope rather than generic proposals.

Minimum RFQ information

• Intended process and operations
• Required cleanliness condition, if known
• Temperature and humidity requirements
• Room dimensions and ceiling height
• Utilities and location constraints
• Chemical, vibration, or ESD considerations
• Required testing and documentation

If the ISO class is not yet known

State product/process sensitivity, critical quality characteristics and contamination mechanisms; feature size may be relevant for semiconductor applications.

Information Deiiang should verify before publishing a recommendation

Deiiang should verify process requirements, applicable standards, facility constraints, and acceptance criteria before recommending project-specific ISO class, airflow, FFU count, setpoints, materials, or performance guarantees.

FAQs

What industries commonly use modular cleanrooms?

Pharmaceuticals, biotechnology, medical devices, semiconductors, electronics, optics, aerospace, and selected food and cosmetic applications.

Do all industries require the same ISO cleanroom class?

No. iso class depends on product sensitivity and process steps.

Why do semiconductor manufacturers use modular cleanrooms?

Localized clean zones, integration with existing facilities, and possible future reconfiguration may be relevant.

Why are cleanrooms used in electronics manufacturing?

Controlled environments can protect sensitive components from particles and ESD.

Are modular cleanrooms suitable for pharmaceutical manufacturing?

They can be used when the complete facility, process, controls, monitoring and qualification programme meet applicable requirements.

Are modular cleanrooms used for medical-device manufacturing?

Yes, for selected processes where particulate, bioburden or other contamination control is justified.

Can modular cleanrooms be used in aerospace and optics?

Yes, for selected contamination-sensitive applications.

Do food and cosmetic manufacturers need ISO-classified cleanrooms?

Not necessarily. Hygiene and microbiological hazard control may be more relevant.

Is a modular cleanroom always cheaper than a traditional cleanroom?

No. Cost depends on scope, specifications, and site conditions.

Are modular cleanrooms easier to expand or relocate?

Some systems are designed for reconfiguration, expansion or reuse, but feasibility depends on many factors.

Does a modular cleanroom automatically meet ISO requirements?

No. The installed cleanroom must be classified against agreed ISO 14644-1 criteria in the specified occupancy state.

How do I choose a modular cleanroom for my industry?

Define process, contamination risks, environmental requirements, and applicable standards.

Conclusion — The Industry Matters, but the Process Defines the Cleanroom

Industries share a need for controlled environments, but requirements diverge widely. The process determines the cleanroom specification; industry labels provide context only. Before requesting a quote, define the contamination-sensitive process, acceptance criteria and site scope rather than selecting a cleanroom from an industry label alone.

Request a Modular Cleanroom Technical Review

A technical review can help translate process needs into a specification basis.

Information to prepare before requesting a quotation

• Process/application
• Dimensions
• Target cleanliness condition
• Environmental conditions
• Equipment/heat load
• Site/location
• Delivery/install/testing scope

CTA

Contact Deiiang for a technical review of your modular cleanroom requirements. No price, schedule, or performance commitment is implied.

Claims to avoid

Do not assume automatic ISO, GMP, or regulatory compliance without design, testing, and validation.

References

• ISO 14644-1:2015 — Classification of air cleanliness by particle concentration
• FDA — Quality Management System Regulation (QMSR)
• FDA — Sterile Drug Products Produced by Aseptic Processing: Current Good Manufacturing Practice
• EU — EudraLex Volume 4: Good Manufacturing Practice (including Annex 1)
• Deiiang — Jingxin Semiconductor, Huangshi cleanroom/clean-booth project (company-published case)
• FAO/WHO — Codex General Principles of Food Hygiene CXC 1-1969