低抵抗HEPAフィルター — OEMメーカー

標準HEPAフィルターが引き起こすCADRの問題

CADR (Clean Air Delivery Rate) is the metric that sells air purifiers. It appears on product listings, Amazon titles, and certification labels. Every air purifier OEM wants a higher CADR — but standard HEPA filters create a fundamental design trade-off:

Higher filter efficiency = finer fiber media = higher air resistance = lower airflow at the same fan power = lower CADR.

Most OEMs compensate by increasing fan motor size and speed — which raises noise levels, energy draw, and product cost. Low resistance HEPA filters break this trade-off by delivering H13 efficiency with a pressure drop 20–40% lower than conventional HEPA media, allowing the same fan to move more air and deliver higher CADR without the noise and power penalty.

製品仕様

H13 vs H14：指定すべきグレードは？

For the vast majority of residential and commercial air purifier OEMs, H13 is the correct specification. H14 is only justified when the end application genuinely requires near-total particle elimination — adding H14 to a residential product increases cost and pressure drop without a meaningful air quality benefit for the end user.

効率を損なわずに低抵抗を実現する方法

Conventional wisdom treats HEPA efficiency and pressure drop as a fixed trade-off. Our engineering approach breaks it through three levers:

1. プリーツ数の増加

More pleats = more media area per unit filter volume = lower face velocity per pleat = lower pressure drop at the same total airflow. We engineer pleat depth and spacing to maximize media area within your filter housing dimensions.

2. 最適化されたグラスファイバー径

Finer glass fibers improve capture efficiency through diffusion and interception, but increase resistance. We use a bi-layer media design — a coarser pre-filter layer reduces particulate loading on the fine HEPA layer, preserving airflow over the filter's service life.

3. ろ材面積の拡張設計

For cylindrical or conical filter formats (common in tower and column air purifiers), we optimize media area by maximizing usable filter height and internal diameter — giving more surface area within the same external housing footprint.

OEMカスタマイズオプション

用途

• Residential air purifiers — tower, panel, and robot form factors; all major housing types
• Commercial air purifiers — open-plan office, retail, hospitality
• HVAC terminal filters — FCU return air filtration, AHU fine filtration
• Medical air purifiers — clinic waiting rooms, dental offices (H13–H14)
• Cleanroom pre-filters — protecting downstream ULPA banks
• Industrial process air — paint booth exhaust, pharmaceutical manufacturing

なぜNantong Deliから調達するのか

よくある質問

低抵抗HEPAフィルターとは何ですか？

A HEPA filter that achieves H13 or H14 efficiency (≥99.95% at MPPS) with a lower pressure drop than conventional HEPA media — through higher pleat count, optimized fiber design, or expanded media area. Lower pressure drop means higher CADR at the same fan power and noise level.

H13とH14 HEPAの違いは何ですか？

H13 captures ≥99.95% of particles at MPPS. H14 captures ≥99.995%. H13 is correct for residential and commercial air purifiers. H14 is for medical, cleanroom, and pharmaceutical environments where near-total particle removal is required.

低圧力損失HEPAはどのようにCADRを改善しますか？

Lower pressure drop allows the fan to move more air at the same motor power and noise level, directly increasing the CADR airflow component without sacrificing filtration efficiency. Result: better product spec sheet without increasing BOM cost.

中国からカスタムの低抵抗HEPAフィルターを調達できますか？

Yes. Nantong Deli manufactures custom low resistance HEPA filters in any dimension, pleat config, and frame material. H13/H14 available. ISO 9001 certified, SGS testing available, free samples in 7 days. Contact us →

どのようなフレーム材質が利用可能ですか？

ABS plastic, aluminium, stainless steel 304, and kraft cardboard (standard indoor only). Plastic and metal frames recommended for humid environments or long service life applications.

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HEPAフィルターを分類する規格は?

HEPAフィルターはEN 1822-1で分類されます。H13はMPPS (0.1–0.3 µm) で≥99.95%を捕集; H14は≥99.995%。住宅・商用空気清浄機にはH13が標準仕様。H14は医療・クリーンルーム・製薬用途。南通得力の低抵抗H13は従来H13より20–40%低い圧力損失を実現。