Nantong Deli Purification Equipment Co., Ltd. is pleased to announce that its High Circulation Efficiency Air Filter with Low Resistance — the company's core HAF-type pre-filter for professional LGR dehumidifiers — has been selected as a 2025 MEI Award winner in the Industrial Equipment & Components category.
The award is independently administered by Focus Technology Co., Ltd. (operator of Made-in-China.com) with industry partners including Bureau Veritas (BV), SGS, and TÜV. Winning products are evaluated for manufacturing quality, design innovation, export readiness, and compliance with international standards.
Product: High Circulation Efficiency Air Filter with Low Resistance
Applicant: Nantong Deli Purification Equipment Factory Co., Ltd.
Category: Industrial Equipment & Components
Source: meiawards.com — Official Product Showcase ↗
What Is the MEI Award?
The Made Excellence Innovation (MEI) Award is one of China's most visible independent product quality programmes for export-oriented manufacturers. Unlike in-house certifications, MEI evaluations are conducted by third-party industry bodies — audit partners include Bureau Veritas, SGS, TÜV, CASME, and CIDA.
The programme covers both light and heavy industry, with product showcase listings on Made-in-China.com (the world's second-largest B2B sourcing platform). Winning the MEI Award signals to international procurement teams that a product has passed external scrutiny across manufacturing capability, export trade standards, product quality systems, and service reliability — the same four pillars evaluated in Nantong Deli's Bureau Veritas factory audit (Report MIC-ASR2541690, Re-Audit PASS, November 2025).
The Winning Product: HAF High Circulation Efficiency Air Filter
The awarded filter is designed as a pre-filter for professional LGR (Low-Grain Refrigerant) dehumidifiers — the core equipment used in water damage restoration, commercial dehumidification, and industrial drying applications. It is the same product category used in Dri-Eaz LGR 700, LGR 2800i, Phoenix R200S, and AlorAir SLGR 1600X units.
Technical Specifications
| Parameter | Specification |
|---|---|
| Filter Type | HAF (High Air Flow) pre-filter — electrostatic open-channel synthetic media |
| Pressure Drop | 0.08–0.15 in. w.c. at rated airflow (250+ CFM) |
| Airflow Maintenance | ≥95% of rated CFM throughout service life |
| Antimicrobial Treatment | Standard (mold and bacteria inhibition) |
| Sizes Available | Custom — OEM dimensions accepted |
| Efficiency Ratings | Multiple MERV-equivalent options available |
| MOQ | 300–500 units |
| Sample Lead Time | 7 business days |
Why Low Resistance Matters
LGR dehumidifiers are rated for their pints-per-day moisture removal capacity at a specific airflow volume — typically 250 CFM or higher. A filter that increases static pressure restricts this airflow, reducing moisture removal efficiency and risking evaporator coil icing, which can damage the compressor.
The HAF filter's open-channel electrostatic media design maintains pressure drop within specification even as the filter accumulates particulate load. This is the key technical distinction from standard pleated MERV filters — and the core engineering achievement recognised by the 2025 MEI Award.
"Pre-filter — HAF-type filter, available in various sizes and efficiency ratings tailored to customer requirements. Suitable for raw materials of all grades. Pressure drop control achieved by adjusting filter media thickness."
— Official MEI Award Product Description, meiawards.comWhat This Award Means for OEM Buyers
For procurement managers, restoration equipment distributors, and private-label brands evaluating Chinese air filter suppliers, third-party recognition reduces sourcing risk. The MEI Award, validated by Bureau Veritas and SGS as industry partners, provides a documented quality signal beyond factory self-declaration.
Combined with Nantong Deli's existing credentials:
- ISO 9001:2015 certified since 2005 (quality management system)
- ISO 14001 environmental management certification
- 53 authorized patents, including 3 utility patents for composite filter media construction
- Bureau Veritas factory audit — Re-Audit PASS, November 2025 (Report MIC-ASR2541690)
- National High-Tech Enterprise designation (China, 2016)
- OEM supplier to Gree Electric, Freudenberg, Philips, and JIELV Group
The 2025 MEI Award adds independent product-level validation to Nantong Deli's factory-level certifications — giving procurement teams a more complete quality picture across both manufacturing process and finished product.
Availability and Custom Orders
The award-winning HAF filter is available for OEM and private-label orders globally. Nantong Deli supplies drop-in compatible filters for all major LGR dehumidifier brands, including:
- Dri-Eaz LGR 700
- Dri-Eaz Phoenix LGR
- Phoenix R200S
- AlorAir Storm SLGR 1600X
- Custom dimensions for non-standard and proprietary dehumidifier models
Full audit documentation — including the Bureau Veritas factory audit report and ISO certificates — is available to qualified buyers upon request. Contact amanda@ntdeli.top or visit the HAF Filter product page to request samples or discuss OEM requirements.
Request a Sample of the Award-Winning Filter
7-day sample lead time · Custom sizes accepted · Full documentation available
Request Free Sample View Product DetailsAbout Nantong Deli Purification Equipment Co., Ltd.
Founded in 1993 in Nantong, Jiangsu Province, Nantong Deli is a specialist OEM/ODM manufacturer of air filtration products — humidifier wick filters, HAF dehumidifier filters, aluminium mesh filters, and activated carbon filters. With 53 authorized patents, a PhD-led in-house R&D team, and a monthly production capacity of 3 million+ units, the company exports to 50+ countries and serves global brands including Gree, Freudenberg, and Philips.
The company operates an in-house laboratory with a 30m³ CADR sealing test cabin, microbial resistance testing, and air channel efficiency testing lines. All filter products are independently audited by Bureau Veritas prior to shipment.