Furniture low formaldehyde product certification

Core Content of the Certification

The Low-Formaldehyde Furniture Product Certification focuses on the strict control of formaldehyde emissions from furniture products, with core assessments conducted across the following dimensions:

• Formaldehyde Emission Testing: According to the GB/T 35607-2024 standard, formaldehyde emissions from finished furniture products under simulated use conditions are tested using the 1-cubic-meter climate chamber method. This method simulates actual indoor conditions by placing the entire piece of furniture into the chamber for non-destructive testing, yielding results that more accurately reflect real-world scenarios. The testing cycle is typically 28 days, ensuring formaldehyde emissions reach a stable state.
• Tiered Limit Requirements: Different grades are assigned based on formaldehyde emission levels. The GB/T 35607-2024 standard specifies the limit for green products as ≤0.05mg/m³ (E0 grade), which is stricter than the ≤0.08mg/m³ limit stipulated by the national mandatory standard GB 18584-2024. Some certification bodies also establish more stringent grades, such as a premium or exceptional grade with formaldehyde emissions ≤0.03mg/m³.
• Raw Material Source Control: The certification requires enterprises to strictly screen raw materials, prioritizing the use of environmentally friendly materials such as no-added-formaldehyde boards, water-based coatings, and soy-based adhesives. Enterprises must establish a raw material incoming inspection system to ensure that boards, adhesives, coatings, etc., provided by suppliers meet environmental requirements, thereby controlling formaldehyde emissions at the source.
• Production Process Control: Manufacturing enterprises should establish a comprehensive quality management system to strictly control production processes. This includes controlling adhesive application volume, optimizing hot-pressing processes, managing product curing times, etc., to ensure product formaldehyde emissions consistently and stably remain within the requirements of the certification grade.
• Enterprise Quality Control System: This involves evaluating the standardization and effectiveness of the enterprise's quality management systems related to formaldehyde control, including personnel training, raw material incoming inspection, production process monitoring, and finished product outgoing inspection. Enterprises need to establish a product conformity control procedure to ensure consistency between mass-produced products and certified samples.

Certification Grades and Evaluation System

The Low-Formaldehyde Furniture Product Certification typically employs a tiered evaluation system, classifying different grades based on formaldehyde emission levels:

• E0 Grade / Premium Grade: Formaldehyde emissions ≤0.05mg/m³, meeting the green product evaluation requirements of GB/T 35607-2024. Suitable for environments with higher environmental requirements, such as children's rooms, bedrooms, hospitals, schools, and other sensitive settings.
• Exceptional Grade / Super E0 Grade: Formaldehyde emissions ≤0.03mg/m³ or lower; some certification programs may achieve ≤0.025mg/m³. Applicable for sensitive individuals with stringent air quality requirements, such as pregnant women, infants, young children, and those with allergies.
• Internationally Aligned Grades: Aligning with international certifications, such as GREENGUARD Gold requiring formaldehyde ≤0.05mg/m³, and French A+ certification requiring formaldehyde ≤0.01mg/m³ (28-day emission). Products with low-formaldehyde certification can meet the environmental market access requirements of international markets.

Certification Process

The Low-Formaldehyde Furniture Product Certification typically consists of the following stages:

• Certification Application: Submission of application documents including the application form (specifying the requested certification grade), business license, product description, raw material list, production process flowchart, and management system documents. The applying enterprise must pass the certification body's review.
• Document Review: Assessment of product documentation for compliance with standards like GB/T 35607-2024, verification of formaldehyde control measures in product design, raw material procurement, production process control, etc.
• Product Sampling and Testing: Personnel designated by the certification body conduct sampling at the production site or finished goods warehouse. Samples are sent to a laboratory with CMA/CNAS accreditation for testing. Formaldehyde emissions are tested using the 1-cubic-meter climate chamber method, typically with a 28-day testing cycle (including sample pre-treatment and testing time). Test reports meeting requirements issued by CMA-accredited laboratories within the past 12 months may be accepted.
• Initial Factory Inspection: On-site audit of the manufacturing enterprise, including personnel interviews, document and record review, production site inspection, raw material warehouse inspection, and verification of quality control system operation to evaluate the enterprise's quality assurance capability and its ability to consistently produce qualified products.
• Rectification and Reassessment: For any non-conformities identified during the audit, the enterprise must complete corrections within a specified period and submit evidence for reassessment by the audit team.
• Certification Decision and Issuance: Upon technical review approval, a certification certificate is issued confirming the product meets the corresponding grade requirements. The certificate is valid for three years. Certified products may use the certification mark on their packaging or promotional materials.
• Post-Certification Surveillance: An annual surveillance audit is conducted after certification. The first surveillance audit after initial certification should occur within 12 months of the certification decision date, with subsequent audits at intervals not exceeding 12 months. Surveillance内容包括 factory assurance capability inspection, product conformity inspection, and product surveillance testing to confirm ongoing compliance of the product and quality system with certification requirements. Certificate validity is maintained through post-certification surveillance.
• Re-certification Audit: Conducted before certificate expiry to renew certification eligibility, typically on a three-year cycle.

Certification Value

• Safeguarding Consumer Respiratory Health: Through strict control of formaldehyde emissions, it ensures furniture products do not pollute indoor air quality during use, reducing potential health risks from formaldehyde. Formaldehyde is classified as a carcinogen by the World Health Organization; long-term exposure may cause respiratory diseases, hematological system damage, or even cancer. Certified products offer special protection for sensitive groups like children, the elderly, and pregnant women.
• Enhancing Product Market Competitiveness: Certified products can be labeled with low-formaldehyde grade identifiers (e.g., E0 grade, Exceptional grade) during sales, creating a differentiated advantage in homogeneous competition. Industry data indicates that products with environmental certifications can achieve premium rates of 15% to 40% and enjoy priority weighting in government tenders and e-commerce platform search rankings.
• Meeting Tender and Procurement Requirements: In government procurement, procurement by public institutions like hospitals and schools, and large enterprise tenders, low-formaldehyde certification is often listed as a bidding加分项 or entry threshold. Enterprises obtaining low-formaldehyde certification find it easier to enter the qualified supplier lists of major clients, increasing their probability of winning bids.
• Meeting New National Standard Compliance Requirements: GB 18584-2024 "Limit of harmful substances in furniture" officially takes effect on July 1, 2025, tightening the formaldehyde emission limit to 0.08mg/m³ (climate chamber method). Enterprises with low-formaldehyde certification can ensure their products fully comply with the latest mandatory standard requirements, avoiding compliance risks associated with standard updates.
• Promoting Export Trade: The certification standards technically reference advanced international standards. Low-formaldehyde certified products can meet the access requirements of international environmental certifications like GREENGUARD and French A+, helping to overcome foreign technical trade barriers and expand into overseas markets.
• Driving Enterprise Technology Upgrades: Encourages enterprises to replace traditional high-pollution processes, adopt environmentally friendly materials like no-added-formaldehyde boards, water-based coatings, and soy-based adhesives, and establish robust quality control systems to ensure the lasting stability of product environmental performance.

Applicable Product Scope

The Low-Formaldehyde Furniture Product Certification applies to various types of residential furniture products, including but not limited to:

• Wooden Furniture: Wardrobes, bookcases, dining tables and chairs, bed frames, office desks, filing cabinets, etc.
• Upholstered Furniture: Sofas, mattresses, upholstered beds, office chairs, etc.
• Metal Furniture: Metal-frame sofas, metal storage cabinets, steel office furniture, etc.
• Custom Furniture: Complete kitchen cabinets, custom wardrobes, tatami mats, etc.
• Children's Furniture: Children's beds, children's desks and chairs, cribs, high chairs, etc.
• Other Furniture: Educational furniture, medical furniture, office partitions, etc.