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IAQ Certification Scheme
Issuing IAQ Accredited Cert
Hong Kong Accredited Indoor Air Quality (IAQ) Certificate Issuing Body (CIB)（編號：）
Lux Laboratory is recognized under the Hong Kong Inspection Body Accreditation Scheme (HKIAS) as an accredited Indoor Air Quality (IAQ) Certificate Issuing Body (CIB). According to the Environmental Protection Department (EPD) guidelines, Lux Laboratory provides professional indoor air quality testing services for offices, shopping malls, hotels, restaurants, warehouses, banks, clubs, and other public premises.
Complies with EPD’s IAQ Inspection Guidelines, covering test items such as:
Carbon Dioxide, Carbon Monoxide, PM2.5, PM10, Formaldehyde, Ozone, Total Volatile Organic Compounds (TVOCs), Radon, and Odour.Provides “Excellent Class” or “Good Class” IAQ assessment results.
Issues recognized IAQ assessment reports to help clients meet statutory and green building requirements, as well as to apply for the “Indoor Air Quality Certification Scheme.
With our comprehensive laboratory support and professional team, Lux Lab provides customers with a one-stop IAQ evaluation, assessment, and assistance service, helping to create a healthy, comfortable, and sustainable indoor environment.
Assistance in Applying for
the “Indoor Air Quality Certification Scheme”
Lux Laboratory is not only a HOKLAS-accredited calibration laboratory but has also expanded its expertise to indoor air quality assessment, becoming the 11th organization in Hong Kong accredited under the Hong Kong Inspection Body Accreditation Scheme (HKIAS) as an Indoor Air Quality Certificate Issuing Body (CIB).
Our IAQ professional team has over 10 years of industry experience and provides a one-stop service, from on-site IAQ sampling and laboratory analysis, to comprehensive site inspections and professional evaluations. We assist building owners or property management companies in applying for the IAQ Certification Scheme. Based on the measurement results, we issue official IAQ assessment reports and accredited IAQ certificates.
The relevant IAQ certification are categorized into “Excellent Class” and “Good Class.”
The IAQ Certification Labels (Sample)
The IAQ Certificates (Sample)
FAQs
?
The Environmental Protection Department’s “Indoor Air Quality Certification Scheme for Offices and Public Places” establishes a two-tier standard as the basis for evaluating indoor air quality. This standard is aligned with internationally recognized health-based IAQ standards, including those adopted by the World Health Organization.
Excellent Class – Represents the best indoor air quality suitable for a superior and comfortable environment in buildings.
Good Class – Represents indoor air quality that can protect the general public, including children and the elderly.
Reference: Guidance Notes for the IAQ Certification Scheme, 2021
Generally, the assessment takes about 1–2 days, depending on the size of the premises. During the assessment, instruments are placed at designated spots, and the impact on daily operations is minimal.
The cost depends on the scope of inspection, floor area, number of sampling points, and certification level applied. Lux Lab inspectors will conduct a site survey to understand the conditions before providing an appropriate quotation.
The certificate is valid for 1 year from the date of issue or until the anniversary of the certificate issued by the Environmental Protection Department, whichever is earlier.
The certification cycle is up to 5 years:
Years 2–4: Partial parameter checks (e.g., CO₂, RSP, etc.)
Year 5: Full re-assessment covering all parameters (known as the “major assessment”).
After completing the assessment, Lux Lab issues the IAQ assessment report. Qualified applicants may then apply to the EPD for IAQ certification.
From submission to certificate issuance, the process usually takes about 30 working days.
Service Workflow
Consultation and Preliminary Assessment
– Clients provide building/site information.
– Lux Lab conduct a preliminary assessment, explaining the purpose and process of certification, as well as different certification levels.
– Based on floor area and usage, we propose the number of measurement points and scope for quotation.
On-site Inspection and Measurement
– Lux Lab technical team conducts on-site inspection, arranges instrument placement.
– Data is collected on-site for 1–2 days in accordance with EPD IAQ Guidelines.
Laboratory Analysis
– Data and samples are brought back to the laboratory for professional analysis and evaluation.
– Parameters include CO₂, CO, PM2.5, PM10, Formaldehyde, TVOCs, Ozone, Bacteria, etc.
Report
– The report will indicate whether the site’s IAQ meets the standard for “Excellent Class” or “Good Class.
Certificate Application
– Lux Lab assists clients in submitting the assessment report to apply for IAQ certification.
About US
Unit 1902, 19/F, Trium Lab, 21 Luk Hop Street, San Po Kong, Kowloon, Hong Kong
+852 3500-3935