行业组件数据 · 2026

HEPA过滤介质

繁體：HEPA過濾介質

HEPA过滤介质是一种专用过滤材料，能够捕获至少99.97%的0.3微米及以上空气颗粒。

技术定义与适配语境

典型 HEPA过滤介质会按材料、尺寸公差、适配关系和失效风险在机械和设备制造中评估。

HEPA过滤介质是一种专用过滤材料，设计用于捕获至少99.97%的0.3微米及以上空气颗粒。它由随机排列的玻璃纤维或合成纤维致密毡组成，并用树脂粘合剂粘结，形成曲折路径，通过拦截、惯性碰撞和扩散机制捕获颗粒。该组件是HEPA过滤器组件的核心过滤元件，用于洁净室、制药生产、电子制造及其他需要超净空气的受控环境。 HEPA过滤介质通过三种主要过滤机制运行：1) 拦截——随气流流线运动的颗粒与纤维碰撞；2) 惯性碰撞——较大颗粒无法跟随弯曲流线而嵌入纤维；3) 扩散——亚微米颗粒表现出布朗运动，增加与纤维碰撞的概率。介质的高纤维密度和小孔径形成迷宫式结构，有效捕获颗粒，同时保持可接受的气流阻力。

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组件规格

定义

HEPA过滤介质是一种专用过滤材料，设计用于捕获至少99.97%的0.3微米及以上空气颗粒。它由随机排列的玻璃纤维或合成纤维致密毡组成，并用树脂粘合剂粘结，形成曲折路径，通过拦截、惯性碰撞和扩散机制捕获颗粒。该组件是HEPA过滤器组件的核心过滤元件，用于洁净室、制药生产、电子制造及其他需要超净空气的受控环境。

HEPA过滤介质通过三种主要过滤机制运行：1) 拦截——随气流流线运动的颗粒与纤维碰撞；2) 惯性碰撞——较大颗粒无法跟随弯曲流线而嵌入纤维；3) 扩散——亚微米颗粒表现出布朗运动，增加与纤维碰撞的概率。介质的高纤维密度和小孔径形成迷宫式结构，有效捕获颗粒，同时保持可接受的气流阻力。

工作原理

HEPA filter media operates through three primary filtration mechanisms: 1) Interception - particles following air streamlines collide with fibers; 2) Impaction - larger particles cannot follow curved streamlines and embed in fibers; 3) Diffusion - submicron particles exhibit Brownian motion, increasing collision probability with fibers. The media's high fiber density and small pore size create a labyrinthine structure that efficiently captures particles while maintaining acceptable airflow resistance.

材料

通常由硼硅酸盐玻璃微纤维（直径0.5-2.0 μm）与丙烯酸或其他聚合物粘合剂组成。替代材料包括PTFE膜、纳米纤维涂层或合成聚合物如聚丙烯用于特定应用。介质厚度范围为0.3-1.0 mm基重为50-150 g/m²。

Thickness

0.4-0.8 mm

Basis Weight

80-120 g/m²

Pressure Drop

≤250 Pa @ 0.5 m/s face velocity

Media Velocity

2.5-5.0 cm/s

DOP Penetration

≤0.03%

Air Permeability

2-10 cfm/ft² @ 0.5" w.g.

Humidity Resistance

0-100% RH

Filtration Efficiency

≥99.97% @ 0.3 μm

Temperature Resistance

-40°C to 120°C

标准

ISO 29463ISO 16890EN 1822IEST-RP-CC001ASHRAE 52.2

行业分类与别名

HEPA过滤介质的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

高效空气过滤器组件

一种模块化过滤单元，设计用于高效捕获排气系统中的空气悬浮颗粒。

查看产品详情 ->

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Excessive pressure differential->Media rupture or bypass->Install pressure gauges with alarms, use reinforced media with scrim backing, implement differential pressure monitoring systems

Chemical exposure to incompatible substances->Fiber degradation and efficiency loss->Select chemically resistant media (PTFE or specialty polymers), implement pre-filters for chemical removal, establish chemical compatibility charts

Improper handling during installation->Physical damage and leakage paths->Develop detailed installation procedures, provide technician training, use protective packaging during transport, conduct post-installation testing

工业生态与工程逻辑

兼容对象

HEPA Filter Housings Cleanroom Air Handling Units Biological Safety Cabinets Pharmaceutical Isolators Electronics Assembly Equipment Hospital Operating Room Ventilation

可替换件

Camfil Donaldson AAF International Freudenberg Filtration Pall Corporation MANN+HUMMEL

Media tearing during installation

Delamination from frame

Moisture damage reducing efficiency

Chemical degradation from process vapors

Incorrect media orientation reducing performance

合规与检测

tolerance

Media efficiency must maintain ≥99.97% at 0.3 μm throughout rated service life. Pressure drop increase limited to ≤100% of initial value. No visible defects exceeding 3 mm in any dimension.

test method

Efficiency testing per ISO 29463 using thermal or liquid aerosol generators. Pressure drop measured per ISO 5011. Integrity testing via photometer scan or particle counter scan methods per IEST-RP-CC034.

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

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制造商列表用于前期研究和供应商能力理解，不代表认证、排名或交易担保。

采购评估维度

不是客户评论，也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档

4/5

制造能力

4/5

可检验性

5/5

供应商透明度

3/5

这些分值是采购评估维度示例，不代表真实客户评分、具体国家买家反馈或实时询盘。

常见问题

What is the difference between HEPA and ULPA filter media?

HEPA media captures ≥99.97% of 0.3 μm particles, while ULPA (Ultra Low Penetration Air) media captures ≥99.999% of 0.12-0.17 μm particles. ULPA has higher efficiency but also higher pressure drop and cost.

How often should HEPA filter media be replaced?

Replacement depends on operating conditions, typically 1-5 years. Monitor pressure drop increase (usually replace when double initial value) and conduct regular integrity testing per ISO 14644 standards.

Can HEPA filter media be cleaned or reused?

No, HEPA media cannot be effectively cleaned without damaging the fiber structure. Attempting to clean can create holes and compromise efficiency. They are designed as disposable components.