ISO 7 Cleanroom UK | Class 10,000 | Monmouth | PackSealer
ISO 7 cleanroom UK
An ISO 7 cleanroom holds airborne particles to fewer than 352,000 per cubic metre at 0.5 microns. That is the working class for sterile pharmaceutical fill, medical device assembly, and most composite layup environments. PackSealer supplies Monmouth Scientific modular ISO 7 cleanrooms, designed and built in the UK, validated to ISO 14644-1, shipped as kits from £17,560 or scoped bespoke for larger facilities.
What ISO 7 actually means on the floor
ISO 7 is defined by ISO 14644-1:2015. Maximum 352,000 particles ≥0.5 microns per cubic metre, in the operational state, with the room running and people working. That is the same classification many regulators previously called Class 10,000 under the older Federal Standard 209E.
In practice, ISO 7 buys you the floor space where sterile pharmaceutical filling, medical device assembly, surgical instrument packing, semiconductor sub-assembly, and most composite layup happens. Gowning airlocks, HEPA filtration to H14, 25 to 60 air changes per hour, and laminar or unidirectional flow over critical zones. It is the workhorse class for regulated manufacturing.
A working ISO 7 build needs more than a sealed box. Air handling, pressure cascade, monitoring, gowning protocol, and validation evidence all sit alongside the panels. Monmouth Scientific modular cleanrooms are engineered as the complete envelope: HEPA-filtered ceiling tiles, vinyl-clad or coated steel walls, gasketed doors, and an integrated control panel.
Who builds an ISO 7 in 2026
Three buyer types drive most of the UK demand we see at this class. Pharmaceutical manufacturers extending capacity for sterile fill or compounding work. Medical device firms scaling assembly under ISO 13485 or adding a packing line for an existing product. Composite and precision manufacturers controlling particulate around prepreg layup and autoclave loading.
The common thread is a regulated or audited process where the contamination cap is the constraint. If your QA lead is rejecting batches over particle counts, if a customer audit has flagged your environmental controls, or if a new programme needs a controlled facility before the contract clears, an ISO 7 modular build is the typical answer. Lead time is weeks, not the year-plus a fitted-out bricks-and-mortar facility takes.
Monmouth delivered the UK's largest modular cleanroom build to date for ADDEV Materials Parafix, a 500m² ISO 7 and ISO 8 facility in Lancing for medical-grade adhesive converting. That's the ceiling Monmouth have hit so far. The reference is on file; ask for the case study during your scoping call.
Cleanroom Kit or bespoke modular: how to choose
For ISO 7 builds under 25m², the Monmouth Cleanroom Kit is the practical starting point. Four standard footprints, factory-tested, shipped as a flat-pack with installation guide. You get a validated ISO 7 envelope at a known price, lead time around 4 to 6 weeks. For builds larger than 25m², multi-zone facilities, or anything that needs unusual ceiling heights, integrated HVAC, or material airlocks, the bespoke Modular Cleanroom is engineered to spec.
| Build option | Footprint | Indicative price (ex VAT) | Best for |
|---|---|---|---|
| Monmouth Cleanroom Kit 12m² | 3m x 4m | £17,560 | Pilot lines, single-operator sterile prep, R&D |
| Monmouth Cleanroom Kit 15m² | 3m x 5m | £19,620 | Two-operator assembly, packing line, dental moulding |
| Monmouth Cleanroom Kit 20m² | 4m x 5m | £21,750 | Production assembly with gowning area, IVD lines |
| Monmouth Cleanroom Kit 25m² | 5m x 5m | £24,800 | Multi-process cells, small-batch sterile fill |
| Bespoke Modular Cleanroom | 25m² and up | Quoted to scope | Facility-scale builds, multi-zone, ISO 6 step-up, large-format composite |
All Monmouth builds use the same panel system, HEPA filtration grade, and door hardware regardless of size. The kit option is a packaging decision, not a quality decision. Same envelope, smaller box. If your scope grows mid-project, the kit can be extended with additional panels rather than redesigned. For pricing on bespoke scopes, call 0121 704 0294 and we will walk through your floor plan.
Validation, IQ/OQ and lifetime support
Buying the envelope is the first decision. The harder one is who validates it, monitors it, and stands behind the build when an auditor walks in. Monmouth Scientific provide on-site Installation Qualification and Operational Qualification documentation, particle count testing to ISO 14644-1, HEPA integrity testing, and recurring revalidation visits. Pricing for validation visits sits in the £400 to £795 range depending on scope.
Filters need replacing on a defined schedule, gaskets need inspection, and monitoring instruments need calibration. We hold spare HEPA modules, gasket kits, and replacement door seals for every Monmouth build we sell. UK stock, not a four-week reorder.
Monmouth ISO 7 Cleanroom Kits in stock
Bespoke ISO 7 facility larger than 25m²
Multi-zone builds, integrated HVAC, material transfer airlocks, or anything outside the standard kit footprint. Scoped to your floor plan, validated to ISO 14644-1, IQ/OQ documentation included. Lead times typically 8 to 14 weeks depending on scope. Send us your scope and we will quote within a working week.
Request a scoping call →Related cleanroom pages
Scope an ISO 7 cleanroom for your facility
Tell us your floor area and the process you're protecting. We'll come back with the right Monmouth Cleanroom Kit or a bespoke scope within a working week.
Common questions about ISO 7 cleanrooms
ISO 7 allows a maximum of 352,000 particles per cubic metre at 0.5 microns and larger, in the operational state, per ISO 14644-1:2015. Smaller particle counts apply at 1.0 and 5.0 micron thresholds. The room must be measured with people working and equipment running, not just at rest.
Yes. ISO 7 is the direct replacement for the older Federal Standard 209E Class 10,000 designation. Federal Standard 209E was retired in 2001 in favour of ISO 14644-1. The cleanliness levels are equivalent for practical purposes, though the ISO method specifies particle measurement protocols more precisely.
Industry guidance is 25 to 60 air changes per hour for ISO 7, with the actual rate determined by the heat load, headcount, and process activity. Most Monmouth Cleanroom Kit installations sit around 40 air changes per hour as a starting point, tuned during commissioning to hit the particle count target with a comfortable safety margin.
A Monmouth Cleanroom Kit at ISO 7 starts at £17,560 ex VAT for 12m² and rises to £24,800 ex VAT for 25m². Bespoke builds larger than 25m² are quoted to scope, typically £40,000 to £500,000 depending on size and HVAC integration. Validation visits and recurring requalification sit alongside at £400 to £795 per visit.
A standard Monmouth Cleanroom Kit ships in 4 to 6 weeks from order and installs in 3 to 5 days on a prepared site. Bespoke builds run 8 to 14 weeks from order to handover depending on scope. The fastest path is a kit on an existing concrete floor with three-phase power available; the longest paths involve services upgrades, multi-zone layouts, or building work to host the envelope.
Monmouth provide Installation Qualification (IQ) and Operational Qualification (OQ) documentation, particle count test results to ISO 14644-1, HEPA filter integrity test certificates, pressure cascade test data, and the design specification pack. This is the documentation auditors and Qualified Persons typically ask for. Performance Qualification (PQ) is process-specific and runs once the room is handed over.
Yes. The panel system is modular by design. A 12m² kit can be extended with additional wall and ceiling panels rather than replaced. The HEPA filtration capacity may need an upgrade if the floor area grows substantially, and the control panel sizing should be reviewed, but the basic envelope expands without rebuild. Plan the extension at scoping time if you know growth is coming.
No. PackSealer supplies Monmouth cleanrooms for purchase only. For short-term project work or temporary capacity, ask us about clean tents and flexible clean canopies as a lower-cost interim option. For permanent ISO 7 capacity, the Cleanroom Kit or bespoke build is the right route and typically pays back faster than rental over a 12-month horizon.
Not sure which class your process needs? Our free assessment maps you to ISO 6, 7, or 8 in two minutes.
Find My Cleanroom ClassGet an ISO 7 cleanroom quote from PackSealer
Monmouth Scientific modular ISO 7 cleanrooms. UK-designed, validated to ISO 14644-1, supplied as kits from £17,560 or scoped bespoke for facility-scale builds. Send us your floor plan and we will come back within a working week.
View Cleanroom Range → Or call: 0121 704 0294 (Mon–Fri, 9am–5pm)