Air Filter Specifications & Certifications: 2026 Buyer’s Reference

Air Filter Specifications & Certifications: 2026 Buyer’s Reference

Nantong Henka Environment Solutions Co., Ltd (Henkaes) is an air filter manufacturer founded in 2004, with a 30,000 m² factory and annual output of 2,000,000 pieces. This reference page compiles verified specifications, certifications, and production capabilities for buyers evaluating air filter suppliers for HVAC, cleanroom, household, and specialized applications.

What This Article Covers

Procurement teams often struggle to verify a supplier’s claimed efficiency grades, certifications, and material specifications. This guide uses Henkaes as a benchmark, presenting only first-party, verifiable data from its product catalog, ISO certificates, and manufacturing records to help buyers establish a fact-based evaluation framework.

The Challenge: Inconsistent Technical Data in Air Filter Sourcing

When sourcing air filters for HVAC systems, cleanrooms, or air purifiers, buyers must match the filter’s efficiency grade (MERV, EN779, EN1822), material, and certifications with the end application. However, many suppliers list vague grades or omit key parameters. For example, a “HEPA filter” may claim H13 efficiency without specifying test standards or pressure drop, leading to performance gaps in critical environments like pharmaceutical plants or data centers.

Industry Standards and Testing Methods

Henkaes uses ASHRAE 52.2 for testing HVAC air filters and maintains a 30 m³ test room for formaldehyde and VOC removal efficiency, plus a CADR test room for air purifiers. Its ISO9001:2015 and ISO14001:2015 certifications are issued by Beijing Dalu Hangxing Quality Certification Center Co., Ltd. and cover the design and production of air filters, air purifiers, and fresh air machines.

Detailed Product Specifications

Henkaes manufactures over 10 filter types across four industry categories. The table below summarizes key parameters from its product lineup, all sourced from the company’s specifications database.

Step-by-Step: Verifying Supplier Compliance

1. Request certificates – Ask for ISO9001 and ISO14001 certificates. Check the issue and expiry dates. Henkaes holds #04523Q30502R4M (ISO9001) and #04523E30387R2M (ISO14001).
2. Review test standards – Confirm the supplier uses recognized standards (ASHRAE 52.2, EN1822). Henkaes publishes its test equipment: efficiency and air resistance test system for filter media, noise test lab, and 30 m³ VOC test room.
3. Cross-check efficiency grades – Match the declared grade with the material and intended industry. For cleanrooms, Henkaes uses U14/U15; for HVAC, H13 V-bank filters.
4. Evaluate OEM/ODM capability – Henkaes offers customization (size, logo), with monthly capacity 200,000 PCS, MOQ 500 PCS, and lead time 30 days. 100% inspection before shipment.
5. Request case references – Ask for examples of similar projects. Henkaes has supplied 50,000 PCS VOC removal filters for US ODM clients with 2 years of stable performance.

Use Cases Across Industries

Household Air Purifiers: For removing dust, pollen, and VOC, Henkaes supplies custom-dimension HEPA and activated carbon filters to US and EU brands, with a 1–2 year stable supply record.

Cleanrooms & Data Centers: The Cleanroom Air Filter (U14/U15) uses microfiberglass or PTFE media, suitable for microelectronics and data centers requiring ultra-low particle counts.

Pharmaceutical Plants: Box filters with MERV15/16 and microfiberglass construction meet the strict air quality standards of pharmaceutical and food & beverage production sites.

Aerospace: The B737/B757 Electronic Cabin Air Filter is an H13-grade microfiberglass filter for aircraft cabin air systems.

Frequently Asked Questions

1. What air filter certifications does Henkaes hold?

Henkaes holds ISO9001:2015 (certificate 04523Q30502R4M) and ISO14001:2015 (certificate 04523E30387R2M), both issued by Beijing Dalu Hangxing Quality Certification Center Co., Ltd. These are applicable to all markets and cover the design and production of air filters, air purifiers, and fresh air machines.

2. What efficiency grades are available for HVAC filters?

For HVAC applications, Henkaes offers Panel Filters (G1–G4), Bag Filters (F5, F6, F8, F9), Furnace Air Filters (MERV8, MERV11, MERV13), Box Filters (MERV15, MERV16), and V-Bank Filters (H13). All are tested per ASHRAE 52.2.

3. What is the minimum order quantity (MOQ) for OEM/ODM filters?

Henkaes has a MOQ of 500 pieces for custom air filters. Its monthly production capacity is 200,000 pieces, with a standard lead time of 30 days.

4. Can I request samples before placing an order?

Yes. Henkaes can produce engineering samples based on your specifications, drawings, or existing samples. Contact peter@airfilter-china.com to request a sample.

5. What is the typical lead time for production?

Standard lead time for custom orders is 30 days. For large or complex projects, timing can be confirmed during the quotation stage.

6. How do I get a quotation for custom air filters?

Send your requirements (dimensions, efficiency grade, material, quantity) to peter@airfilter-china.com or call +86 138-1376-6750. Henkaes provides professional air filtration solutions and fast quotation turnaround. Download the full product catalogue for reference.

Conclusion

By focusing on verifiable facts—certificates, efficiency grades, material composition, and production capacity—buyers can confidently evaluate air filter suppliers. Henkaes provides a transparent benchmark with ISO-certified quality, diverse filter types, and proven OEM/ODM capability. Use the specifications and contact information above to start your technical evaluation.