GB/T 18801 CADR Testing for Gaseous Pollutants
Industry-Leading Air Cleaner Performance Validation | Annex C Gaseous Pollutant Testing
Comprehensive Air Cleaner Performance Testing
Airmid Healthgroup delivers independent, third-party GB/T 18801 Annex C testing services, providing manufacturers with scientifically rigorous, defensible performance data for air cleaning technologies targeting volatile organic compounds and gaseous pollutants.
Regulatory Compliance & Market Access
Our GB/T 18801 Annex C testing supports China market entry, regulatory submissions, and international compliance requirements. We deliver data suitable for product registration, certification, and marketing claims substantiation across global markets.
Product Development Excellence
From prototype evaluation to production validation, our testing supports product optimization, comparative benchmarking, and performance verification for air purifiers, gas-phase filters, and air cleaning systems.
Why GB/T 18801 Annex C Testing Matters
China’s GB/T 18801 standard represents one of the most rigorous and widely referenced air cleaner performance standards globally, establishing quantitative methods for determining gaseous pollutant removal effectiveness.
Critical Benefits for Manufacturers
Demonstrate real-world gas-phase removal performance • Quantify CADR for volatile organic compounds • Support credible product labeling and technical documentation • Differentiate products in competitive air cleaner markets
Market Differentiation
Stand out in competitive air cleaner markets with quantified, third-party validated performance data that demonstrates superior gas-phase pollutant control capabilities.
Regulatory Confidence
Meet China’s stringent air cleaner performance requirements with testing that satisfies regulatory authorities and supports smooth market entry processes.
Technical Credibility
Build consumer confidence with scientifically validated performance claims backed by internationally recognized testing methodologies and analytical precision.
Advanced Testing Infrastructure & Capabilities
Purpose-built environmental chambers and validated analytical workflows deliver precise, repeatable CADR calculations with exceptional analytical sensitivity.
Proven Performance Results
Our environmental chamber testing has demonstrated air cleaning device removal of all three standard challenge compounds to below analytical detection limits, providing robust evidence of gas-phase pollutant control effectiveness.
Streamlined Project Process for GB/T 18801
From consultation to final report delivery, our systematic approach ensures efficient project execution and comprehensive data delivery.
Technical Consultation
Scope definition and protocol development
Device Intake
Equipment receipt and pre-test verification
Chamber Testing
GB/T 18801 Annex C protocol execution
Data Analysis
CADR calculation and statistical analysis
Report Review
Draft report collaboration and refinement
Final Delivery
Signed report suitable for regulatory use
Comprehensive Testing Deliverables
Every GB/T 18801 Annex C project includes comprehensive documentation suitable for regulatory submissions and commercial applications.
Standard Deliverables
- ✓ Detailed test protocol aligned to GB/T 18801 Annex C
- ✓ Chamber conditions and calibration records
- ✓ Pollutant concentration vs. time profiles
- ✓ Calculated CADR values for each challenge gas
- ✓ Executive summary and technical analysis
- ✓ Final signed report for regulatory use
Optional Enhancements
- ✓ Replicate testing for statistical validation
- ✓ Comparative product benchmarking
- ✓ Extended pollutant panels and custom gases
- ✓ Product optimization recommendations
- ✓ Accelerated project timelines
- ✓ Ongoing technical support
Industries We Serve
Supporting innovation across air cleaning technology sectors with specialized expertise and regulatory knowledge.
Why Choose Airmid Healthgroup for GB/T 18801
Industry-leading expertise in aerobiology, exposure science, and environmental chamber testing ensures your performance data meets the highest scientific and regulatory standards.
Scientific Excellence
Globally recognized expertise in aerobiology and exposure science with peer-reviewed research backing our methodologies and analytical capabilities.
Regulatory Expertise
Deep understanding of international air cleaner standards and regulatory requirements, supporting successful market entry across global jurisdictions.
Partnership Approach
We don’t simply execute tests—we partner with R&D teams to ensure performance claims are scientifically robust, commercially meaningful, and regulator-ready.
Integrated Capabilities
Co-located microbiology, virology, and allergen laboratories enable comprehensive product validation from early R&D through commercialization.
Proven Track Record
Trusted by global brands, innovative startups, and standards organizations for critical performance validation and regulatory submission support.
Quality Assurance
ISO/IEC 17025:2017 accreditation and GLP compliance ensure data integrity, traceability, and regulatory acceptance for all testing programs.
Ready to Validate Your Air Cleaning Technology?
Get expert guidance on GB/T 18801 testing requirements and access our comprehensive testing resources to accelerate your product development and market entry strategy.
Our comprehensive GB/T 18801 Testing Guide includes protocol specifications, analytical requirements, sample preparation guidelines, and regulatory compliance checklists. Plus, get our exclusive Technical FAQ covering common testing challenges and optimization strategies.
Frequently Asked Questions
1. What is GB/T 18801 Annex C testing and why is it important for air cleaner manufacturers?
GB/T 18801 Annex C is China’s rigorous standard for testing Clean Air Delivery Rate (CADR) of gaseous pollutants, including volatile organic compounds (VOCs). This quantitative method determines how effectively air cleaners remove gases like formaldehyde, toluene, and d-limonene from indoor air. The testing is crucial for manufacturers seeking China market entry, as it provides credible performance data for regulatory submissions, marketing claims substantiation, and product differentiation in competitive air cleaner markets.
2. Which gaseous pollutants does Airmid test according to GB/T 18801 Annex C standards?
Our standard GB/T 18801 Annex C testing includes three primary challenge gases: formaldehyde, toluene, and d-limonene. We maintain high analytical sensitivity with detection limits of 2 ppb for toluene and d-limonene, and 5 ppb for formaldehyde. Additionally, we can test custom pollutant panels and extended gas ranges depending on your specific product requirements and target market needs.
3. What chamber specifications and test conditions do you use for GB/T 18801 CADR testing?
Our purpose-built environmental chambers for GB/T 18801 testing feature 1 m³ volume (ideal for prototype and benchtop systems) with precise control over temperature, relative humidity, air mixing and homogeneity, and pollutant injection profiles. Standard test duration is 8 hours, and our chambers are specifically designed to support repeatable, defensible CADR calculations with robust statistical treatment of results.
4. Can you test prototype devices or only production-ready air cleaners for GB/T 18801 compliance?
Yes, we test devices at all development stages, from early prototypes through production-ready systems. Our 1 m³ chamber configuration is particularly well-suited for prototype and benchtop technologies. We support manufacturers throughout the entire product development cycle, offering integrated support from early R&D through commercialization, including product optimization recommendations based on test results.
5. What deliverables do you provide with GB/T 18801 Annex C testing services?
Every GB/T 18801 Annex C project includes a comprehensive package: detailed test protocol aligned to the standard, chamber conditions and calibration records, pollutant concentration vs. time profiles, calculated CADR values for each gas, executive summary of results, and a final signed test report suitable for regulatory and commercial use. Optional add-ons include replicate testing, comparative product benchmarking, extended pollutant panels, and ongoing product optimization support.
Related Services
Speak With Our Team
If you are developing or commercializing air cleaning technologies and need GB/T 18801 Annex C CADR data, we would be delighted to discuss your project.
👉 Contact Airmid Healthgroup to scope your GB/T 18801 testing program.
Frequently Asked Questions on GB/T 18801 CADR Testing for Gaseous Pollutants
1. What is GB/T 18801 Annex C testing and why is it important for air cleaner manufacturers?
GB/T 18801 Annex C is China’s rigorous standard for testing Clean Air Delivery Rate (CADR) of gaseous pollutants, including volatile organic compounds (VOCs). This quantitative method determines how effectively air cleaners remove gases like formaldehyde, toluene, and d-limonene from indoor air. The testing is crucial for manufacturers seeking China market entry, as it provides credible performance data for regulatory submissions, marketing claims substantiation, and product differentiation in competitive air cleaner markets.
2. Which gaseous pollutants does Airmid test according to GB/T 18801 Annex C standards?
Our standard GB/T 18801 Annex C testing includes three primary challenge gases: formaldehyde, toluene, and d-limonene. We maintain high analytical sensitivity with detection limits of 2 ppb for toluene and d-limonene, and 5 ppb for formaldehyde. Additionally, we can test custom pollutant panels and extended gas ranges depending on your specific product requirements and target market needs.
3. What chamber specifications and test conditions do you use for GB/T 18801 CADR testing?
Our purpose-built environmental chambers for GB/T 18801 testing feature 1 m³ volume (ideal for prototype and benchtop systems) with precise control over temperature, relative humidity, air mixing and homogeneity, and pollutant injection profiles. Standard test duration is 8 hours, and our chambers are specifically designed to support repeatable, defensible CADR calculations with robust statistical treatment of results.
4. Can you test prototype devices or only production-ready air cleaners for GB/T 18801 compliance?
Yes, we test devices at all development stages, from early prototypes through production-ready systems. Our 1 m³ chamber configuration is particularly well-suited for prototype and benchtop technologies. We support manufacturers throughout the entire product development cycle, offering integrated support from early R&D through commercialization, including product optimization recommendations based on test results.
5. What deliverables do you provide with GB/T 18801 Annex C testing services?
Every GB/T 18801 Annex C project includes a comprehensive package: detailed test protocol aligned to the standard, chamber conditions and calibration records, pollutant concentration vs. time profiles, calculated CADR values for each gas, executive summary of results, and a final signed test report suitable for regulatory and commercial use. Optional add-ons include replicate testing, comparative product benchmarking, extended pollutant panels, and ongoing product optimization support.
