With over 50 years of specialized experience, Allometrics, an ISO 17025 accredited lab, delivers controlled environment testing and certification services that meet the most stringent industry standards and regulatory requirements. Our nationwide team of CETA and NSF certified technicians serves pharmaceutical facilities, research laboratories, healthcare institutions, manufacturing plants, and any organization requiring documented proof of environmental control—providing the traceable, audit-ready documentation your operations demand.
Industry-Leading Controlled Environment Expertise and Service Excellence
Trusted Across Industries serving pharmaceutical facilities, healthcare institutions, research laboratories, and manufacturing plants nationwide
24/7 Client Portal Access providing instant certificate retrieval, compliance tracking, and historical documentation for simplified audit preparation
Flexible Emergency Service coordinated to minimize downtime when certifications expire or equipment failures threaten compliance
Comprehensive Service Portfolio covering cleanroom certification, biosafety cabinets, fume hoods, HEPA filters, and validation testing—one partner for all controlled environment needs
Industry-Specific Technical Expertise including USP 797/800 pharmaceutical standards, NSF/ANSI 49 biosafety protocols, ISO 14644 cleanroom classifications, and IEST testing methodologies
NIST-Traceable Documentation with detailed certificates that satisfy regulatory audits and compliance requirements
Complete Controlled Environment Service Solutions
Cleanroom Certification Services
Our cleanroom certification services cover all ISO classifications and pharmaceutical grades, including USP 797 and USP 800 compliance for sterile compounding pharmacies. We provide particle count testing, air velocity measurements, HEPA filter integrity testing, room pressurization verification, and environmental monitoring including media fill validation kits, gloved fingertip sampling, and monthly surface sampling programs. Our comprehensive certification packages ensure your cleanroom maintains the precise environmental controls required for pharmaceutical compounding, medical device manufacturing, and other critical applications. Learn more about our cleanroom certification services →
HEPA Filter Certification & Testing
We perform comprehensive HEPA and ULPA filter certification to verify filter integrity and proper installation across all controlled environment applications. Our testing identifies filter leaks, frame seal failures, and installation defects that compromise air quality, with clear documentation of results and recommendations. We test filters in cleanrooms, biological safety cabinets, laminar flow hoods, and other equipment to confirm they meet applicable standards including NSF, ISO, FDA, and OSHA for particle retention efficiency. Discover our HEPA filter
Fume Hood Services
Our chemical fume hood services include face velocity testing, airflow visualization, and comprehensive containment verification for all chemical fume hood configurations. We provide detailed performance reports that document compliance with federal, state, and industry-specific regulatory requirements including OSHA and ANSI Z9.5 standards. Our technicians identify airflow problems, assess user safety, and recommend corrections to ensure reliable containment during chemical procedures. Get details on our fume hood services →
Biosafety Cabinet Services
Allometrics provides complete biosafety cabinet certification to NSF/ANSI 49 standards, including downflow velocity, inflow velocity, HEPA filter integrity, and airflow smoke patterns. We certify Class I, Class II (Types A1, A2, B1, B2), and Class III cabinets for research laboratories, hospital pharmacies, and clinical settings, ensuring personnel, product, and environmental protection. Our field technicians perform annual certification, post-relocation verification, and post-maintenance testing with electronic certification reports. Learn more about our biosafety cabinet services →
Laminar Flow Hood Services
We certify laminar flow workbenches and unidirectional flow clean-air devices to IEST-RP-CC002.4 standards, measuring air velocity uniformity, HEPA filter integrity, and particle concentration to verify proper cleanliness levels. [1] Our testing confirms proper operation of horizontal and vertical flow hoods used in pharmaceutical compounding, electronics assembly, medical device manufacturing, and research applications. We provide certification for both new installations and routine periodic testing with complete documentation of airflow patterns and cleanliness levels. See our laminar flood hood service capabilities →
Validation Services
Our validation services include temperature mapping, humidity mapping, and pressure mapping for controlled environments and GMP-regulated facilities. We perform microbial environmental monitoring including viable air sampling and surface testing to establish baseline contamination levels and verify cleaning procedures. Allometrics also provides calibration services for anemometers, air samplers, pressure gauges, and other environmental monitors, ensuring your validation instruments maintain NIST-traceable accuracy for audit-ready documentation. Explore our other validation services →
Ready to Schedule Your Controlled Environment Testing?
Contact Allometrics at (281) 474-3329 to speak with our technical specialists about your certification needs—our team is ready to provide expert guidance and fast scheduling to keep your operations compliant.
Controlled Environment Services: Your Questions Answered
A controlled environment is any space where we keep contamination out through special air filters and monitoring. Common examples include cleanrooms that meet ISO 14644 standards, biosafety cabinets that protect workers from germs, chemical fume hoods that keep dangerous fumes away from people, and sterile pharmacy rooms that follow USP 797/800 rules. We also certify laminar flow hoods, isolators, and any room where HEPA filters and air controls keep products, people, or research safe from contamination.
With our controlled environment services, we check that cleanrooms, biosafety cabinets, fume hoods, and other safety equipment work correctly according to official standards. Our technicians measure how fast air moves, test HEPA filters for leaks, make sure contamination stays contained, count particles in the air, check temperature and other conditions. After testing, we create detailed reports that government inspectors and auditors need to see as proof that your controlled environments are working properly. [2]
We provide controlled environment certification and testing services across the entire United States from our location in Webster, Texas. Since 1976, we’ve focused on cleanroom certification, biosafety cabinet testing, fume hood validation, and sterile compounding pharmacy services. Our technicians come to your facility with properly calibrated equipment that traces back to national standards, and we provide documentation that’s ready for any audit. Call us at (281) 474-3329 to schedule certification service anywhere in the country.
Resources
- https://www.iest.org/Standards-RPs/Recommended-Practices
- https://www.cdc.gov/labs/bmbl/?CDC_AAref_Val=https://www.cdc.gov/labs/BMBL.html