Decontamination services — vapor-phase H₂O₂, formaldehyde, and chlorine dioxide

Decontamination of cleanrooms, biosafety cabinets, isolators, and laboratory spaces using vapor-phase hydrogen peroxide (VHP), formaldehyde, and chlorine dioxide methods. CETA-certified technicians and NSF/ANSI 49 Field Certifiers. Trusted by 1,800+ regulated facilities across the southern U.S. and nationwide. Fast scheduling for audit deadlines and failed certifications.

Founded 1976 · 1,800+ accounts · Southern U.S. with nationwide field service
CETA-certified techniciansNSF/ANSI 49 Field CertifiersMulti-site coordination24-hour quote turnaround

Vapor-phase H₂O₂ decontamination cycle in a cleanroom
Vapor-phase H₂O₂ decontamination cycle in a cleanroom

Why decontamination matters

Decontamination is required after BSL-3 work, before maintenance access, after a containment failure, after a positive environmental monitoring result, and as part of routine sterilization protocols in pharmaceutical and life-science facilities. A poorly executed decontamination leaves residual contamination or residual chemical hazard; a properly executed decontamination demonstrates verified bioburden reduction with documented spore challenge results.

The cost of a certification program isn't measured against itself — it's measured against the cost of a failed inspection, a hold on a batch, or a deficiency notice from a state pharmacy board or FDA inspector.

Allometrics has been performing controlled environment testing and certification since the early days of the discipline. Our certificates pass FDA, USP, and Joint Commission review.


Spore-strip biological indicator placement
Spore-strip biological indicator placement

Why Allometrics for decontamination certification

CETA-certified technicians. The Controlled Environment Testing Association is the trade body that defines this discipline. Our team holds the credentials regulated buyers expect.

NSF/ANSI 49 Field Certifiers. Required by every regulated buyer of biosafety enclosure work. Our team is field-certified.

Replace 3–5 vendors with one accredited partner. Calibration, cleanroom certification, biosafety, fume hood, decontamination, and viables — all delivered by the same Allometrics team under one accreditation chain. Allometrics' integrated compliance service team ensures compliance and helps you pass your audits.

50 years of regulated-environment experience. Founded 1976. The team has lived every USP revision, every FDA cGMP guidance update, every Joint Commission standards change.

Schedule onsite decontamination certification before your next audit

CETA-certified, NSF/ANSI 49 Field Certifiers, NIST traceability where required. One number, one team.

or call (281) 474-3329

Decontaminated BSC ready for return to service
Decontaminated BSC ready for return to service

Audit-ready certificates that pass FDA, USP, and Joint Commission review

Designed to pass FDA, USP, and Joint Commission audits on first review. Every Allometrics decontamination certification produces a signed certificate built to survive inspection. Each certificate includes:

  • Equipment / room ID, serial number, manufacturer, model, customer asset tag
  • Date of certification, technician (with credential), next-due date
  • Standard the work was performed to (NSF/ANSI 49 Annex G, ISO 14937, BMBL Section IV (BSL-3 decon))
  • Test results at every measured location — face velocity, pressure differential, particle counts, smoke pattern, integrity, etc.
  • Pass/fail determination against the standard
  • CETA / NSF certifier credential reference

Certificate format is designed for FDA inspections, USP <797>/<800>/<825> reviews by state pharmacy boards, Joint Commission MM/EC chapter reviews, ISO 9001 audits, and the operational-control requirements of every customer QMS we've worked under.

If your Quality team needs custom IQ/OQ/PQ documentation for equipment qualification, we deliver it.


Decontamination services across cleanroom, BSC, and isolator equipment
Decontamination services across cleanroom, BSC, and isolator equipment

What we test and certify

  • Vapor-phase hydrogen peroxide (VHP) decontamination — preferred for sealed cleanrooms, BSCs, isolators
  • Formaldehyde decontamination — traditional BSC decontamination per NSF/ANSI 49 Annex G
  • Chlorine dioxide decontamination — alternative for spaces and equipment incompatible with VHP
  • Biological indicator (BI) verification — Geobacillus stearothermophilus or Bacillus atrophaeus spore strips placed at worst-case locations
  • Cycle development — pre-decon cycle development for novel equipment or facility geometries
  • Post-decon return-to-service certification — verified bioburden reduction documented for QA/regulatory review

Decontamination is delivered as a coordinated service: pre-decon planning, agent injection, dwell, aeration, BI recovery and incubation, and signed return-to-service certificate.

One vendor.
One schedule.
One audit trail.

Have decontamination equipment we can certify?

Most quotes turn around in 24 hours. Onsite, recurring program, or fail-and-respond — your call.

or call (281) 474-3329

Service modes

Onsite field servicebest for active facilities. Our decontamination technicians arrive with vapor generation equipment, sealed-room measurement gear, BI placement and recovery materials, and aeration verification capability. Decontamination is scheduled during a planned outage; total cycle time depends on space volume and agent selection.

Recurring certification programsbest for multi-site customers. Most decontamination certifications are required at intervals defined by the standard (annually for most BSC / LAFW / CAI / CACI; semi-annually for some). Allometrics manages multi-site recurring program calendars with one consolidated report deliverable.

Combined certification + viablesbest for USP <797> and USP <800> programs. Allometrics' sister entity Taylor Lake Laboratories performs the viable air sampling and surface monitoring under A2LA Cert 7533.01. We can deliver certification and EM in a single coordinated visit — one team, one accreditation chain, one report.

Inspection coming up? Get inspection-ready this month.

Onsite scheduling, multi-site coordination, fail-and-respond service — call us today.

or call (281) 474-3329

Decision shortcuts — start here


Standards we work to


Compliance frameworks this work supports


Schedule certification before your next audit

Quote requests, recurring program enrollment, fail-and-respond service, multi-site coordination — one number, one team.

or call (281) 474-3329