Industrial Cleanroom

ENCS Engineering designs and builds cleanrooms for all classes — from single-level production lines to multi-storey facilities — with full testing, certification, and compliance to international standards.

Who uses a cleanroom?

Semi conductor

Pharmaceuticals

Packaging production

Food manufacturing

Micro electronics

Biotechnology

Automotive

Indoor farming

What is a cleanroom?

An engineered space which maintains a very low concentration of airborne particulates. It is well isolated, well-controlled from contamination, and actively cleansed.

The four parameters

Environment control is the major factor in achieving an efficient cleanroom design — directly impacting build and maintenance costs.

Particles count

Concentration of microscopic airborne particles per cubic metre, defining the ISO class.

Pressure

Positive differential pressure prevents external contaminants from entering the controlled space.

Humidity

Humidity is tightly controlled to prevent moisture-related contamination & product damage.

Temperature

Stable temperature conditions protect both production processes and sensitive equipment.

Ready to discuss your
cleanroom project?

Every facility is different. Our engineers will assess your existing production environment and recommend the right cleanroom class, layout, and specification — with full design, build, and certification handled by one team.

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What ISO class determines

The ISO class governs three critical factors that define the total investment required for a cleanroom project.

Microscopic air particles

Stricter ISO classes demand higher-specification HEPA filtration systems and more frequent air changes per hour.

Cost of maintenance

Higher-class rooms require more intensive ongoing monitoring, filter replacement, and recertification programmes.

Build-up cost

Initial construction cost increases significantly with each step up in classification — a Class 10K room can cost several times more than a Class 100K room of the same footprint.

Cleanroom specifications

ENCS designs and builds cleanrooms around existing production equipment or from the ground up, across two primary ISO classifications.

Classification	≥0.1µm	≥0.2µm	≥0.3µm	≥0.5µm	≥1µm	≥5µm	FED STD 209E Equivalent
ISO 1	10	2.37	1.02	0.35	0.083	0.0029	—
ISO 2	100	23.7	10.2	3.5	0.83	0.029	—
ISO 3	1000	237	102	35	8.3	0.029	Class 1
ISO 4	10000	2370	1020	352	83	2.9	Class 10
ISO 5	100000	23700	10200	3520	832	29	Class 100
ISO 6	1000000	237000	102000	35200	8320	293	Class 1000
ISO 7	10000000	2370000	1020000	352000	83200	2930	Class 10000
ISO 8	100000000	23700000	10200000	3520000	832000	29300	Class 100000
ISO 9	1000000000	237000000	102000000	35200000	8320000	293000	Room Air

Components & materials

Every cleanroom is assembled from a combination of core structural components and additional specialist elements, all selected for contamination resistance and cleanability.

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Performance testing & certification

All ENCS cleanrooms undergo a comprehensive six-test validation programme before handover.

Airflow velocity & volume test

HEPA filter integrity leak test

Airborne particle test

Temperature & relative humidity test

Room differential pressure test

Light intensity LUX test

Not sure which cleanroom class your facility needs?

Our engineers assess your site first and recommend the right specification — ISO 7 or ISO 8 — designed around your existing production line, not the other way around.