---
title: "HEPA Filter"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:HEPA_FILTER"
  data_integrity_hash: "968075c9205d7c591df846d47275dbfd"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:HEPA_FILTER"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/hepa-filter.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/hepa-filter"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-1000 Pa pressure differential, 0-40°C temperature, 0-85% relative humidity"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 1250
    unit: "Pa"
    consequence: "Differential pressure exceeding tensile strength of filter media fibers (approximately 2.5 MPa yield strength for glass fiber composites), thermal expansion mismatch between media and frame materials (aluminum frame CTE 23.1×10⁻⁶/°C vs glass fiber CTE 5.4×10⁻⁶/°C), hygroscopic swelling of cellulose-based sealants at water activity &gt;0.85"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Particle loading exceeding 500 g/m² causing flow restriction"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install differential pressure monitoring with automatic alarm at 200 Pa and scheduled replacement at 225 Pa"
  - node_2:
      trigger: "Vibration at 120 Hz resonance frequency with amplitude &gt;0.5 mm"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement vibration isolation mounting with natural frequency below 60 Hz and damping ratio &gt;0.3"
bom_nodes:
  filter-media:
    type: "component"
    urn: "URN:CNFX:ME:FILTER_MEDIA"
    interface_type: "physical-logic-coupled"
  support-grid:
    type: "component"
    urn: "URN:CNFX:ME:SUPPORT_GRID"
    interface_type: "physical-logic-coupled"
  sealing-gasket:
    type: "component"
    urn: "URN:CNFX:ME:SEALING_GASKET"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/hepa-filter.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "11d3dd18554f6ffa8ef6e1b8712acbc8515b2a9728f1863513227dc684516d3f"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: HEPA Filter

## 1. Technical Definition
A high-efficiency particulate air filter that removes at least 99.97% of airborne particles 0.3 microns in diameter.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-1000 Pa pressure differential, 0-40°C temperature, 0-85% relative humidity**. Failure boundary: **Pressure differential exceeding 1250 Pa causes media rupture, temperature exceeding 60°C degrades sealant integrity, relative humidity exceeding 95% promotes microbial growth**, Mechanism: **Differential pressure exceeding tensile strength of filter media fibers (approximately 2.5 MPa yield strength for glass fiber composites), thermal expansion mismatch between media and frame materials (aluminum frame CTE 23.1×10⁻⁶/°C vs glass fiber CTE 5.4×10⁻⁶/°C), hygroscopic swelling of cellulose-based sealants at water activity &gt;0.85**.

### 2.1 Analytical Physics Model
Governed by the **Darcy-Weisbach Pressure Drop**:

> **Primary Equation**: $\Delta P = f \cdot \frac{L}{D} \cdot \frac{\rho v^2}{2}$  
> **Engineering Impact**: Critical for sizing CIP (Clean-In-Place) pump heads.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| f | Friction Factor | Engineering Constant |
| L | Pipe Length | Engineering Constant |
| v | Velocity | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Particle loading exceeding 500 g/m² causing flow restriction | 8 | Pressure drop exceeding 250 Pa at rated flow, resulting in system airflow reduction below 80% of design specification | Install differential pressure monitoring with automatic alarm at 200 Pa and scheduled replacement at 225 Pa |
| Vibration at 120 Hz resonance frequency with amplitude &gt;0.5 mm | 8 | Structural fatigue failure at filter-frame interface, leading to bypass leakage with efficiency drop below 99.97% at 0.3 μm | Implement vibration isolation mounting with natural frequency below 60 Hz and damping ratio &gt;0.3 |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Air Handling Unit**, **Dust Collector System**, **Air Compressor**  
**Downstream Applications**: Cleanroom Air Systems, HVAC Systems, Medical Equipment  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What particle size does this HEPA filter capture?
**A**: This HEPA filter captures at least 99.97% of airborne particles as small as 0.3 microns in diameter, including dust, pollen, mold, and bacteria.

### Q: What materials are used in this industrial HEPA filter?
**A**: The filter uses glass fiber or polypropylene media, supported by a rigid aluminum frame with sealing gaskets for optimal performance in machinery applications.

### Q: How does this HEPA filter benefit machinery manufacturing operations?
**A**: It protects sensitive equipment from particulate contamination, improves air quality in manufacturing areas, and helps maintain cleanroom standards where required.

## 6. Manufacturing Compliance

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### 🛠️ Engineering Resource Access
🔗 **[Full Specification: HEPA Filter](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/hepa-filter)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: HEPA_FILTER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 692b75ad
