---
title: "Containment Hood"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:CONTAINMENT_HOOD"
  data_integrity_hash: "7cc28d104af7a2c59c0b493d045f7686"
  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:CONTAINMENT_HOOD"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/containment-hood.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/containment-hood"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-2.0 m/s capture velocity at hood face"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 0.25
    unit: "m"
    consequence: "Boundary layer separation due to insufficient static pressure differential (ΔP &lt; 75 Pa) between hood interior and ambient environment"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Filter loading exceeding 500 g/m² particulate accumulation"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Differential pressure monitoring with automatic filter cleaning at 250 Pa ΔP"
  - node_2:
      trigger: "Hood face velocity exceeding 3.5 m/s"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Variable frequency drive control maintaining 1.2-1.8 m/s face velocity"
bom_nodes:
  housing-frame:
    type: "component"
    urn: "URN:CNFX:ME:HOUSING_FRAME"
    interface_type: "physical-logic-coupled"
  observation-window:
    type: "part"
    urn: "URN:CNFX:ME:OBSERVATION_WINDOW"
    interface_type: "physical-logic-coupled"
  access-door:
    type: "part"
    urn: "URN:CNFX:ME:ACCESS_DOOR"
    interface_type: "physical-logic-coupled"
  duct-connection-flange:
    type: "component"
    urn: "URN:CNFX:ME:DUCT_CONNECTION_FLANGE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 14644-1:2015 CLEANROOMS AND ASSOCIATED CONTROLLED ENVIRONMENTS"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASHRAE 110-2016 METHOD OF TESTING PERFORMANCE OF LABORATORY FUME HOODS"
    scope: "Verified Engineering Specification"
  - standard: "DIN 12924-1:2015 LABORATORY EQUIPMENT - FUME HOODS - PART 1: SAFETY REQUIREMENTS AND TESTING"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/containment-hood.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "a93d5692bf2d79dc57b58a73369e1ccfe2317bab1387fe1ade28ddb88d0828f0"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Containment Hood

## 1. Technical Definition
A protective enclosure designed to capture and contain airborne dust particles at their source within industrial processes.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-2.0 m/s capture velocity at hood face**. Failure boundary: **Capture velocity drops below 0.25 m/s at source distance of 0.3 m**, Mechanism: **Boundary layer separation due to insufficient static pressure differential (ΔP &lt; 75 Pa) between hood interior and ambient environment**.

### 2.1 Analytical Physics Model
Governed by the **Hansen Solubility Distance (HSP)**:

> **Primary Equation**: $R_a = \sqrt{4\Delta\delta_d^2 + \Delta\delta_p^2 + \Delta\delta_h^2}$  
> **Engineering Impact**: Predicts seal/gasket swelling when exposed to CIP chemicals.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| \delta_d | Dispersive | Engineering Constant |
| \delta_p | Polar | Engineering Constant |
| \delta_h | Hydrogen | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Filter loading exceeding 500 g/m² particulate accumulation | 8 | Airflow reduction to 30% of design capacity | Differential pressure monitoring with automatic filter cleaning at 250 Pa ΔP |
| Hood face velocity exceeding 3.5 m/s | 8 | Particle re-entrainment and escape from containment zone | Variable frequency drive control maintaining 1.2-1.8 m/s face velocity |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Observation Window](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/observation-window.md) `(Standalone System)`
- [Access Door](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/access-door.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Industrial Dust Collector**, **High-Pressure Blower**, **Ductwork System**  
**Downstream Applications**: Clean Manufacturing Environment, Compliant Industrial Facility, Processed Materials with Reduced Contamination  

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

### Q: What materials are available for containment hoods in machinery manufacturing?
**A**: Our containment hoods are constructed from galvanized steel for general use, stainless steel for corrosive environments, and polycarbonate for visibility and impact resistance in observation areas.

### Q: How does a containment hood improve industrial dust control?
**A**: Containment hoods capture airborne dust particles directly at their source during industrial processes, preventing dispersion into the workspace and improving air quality, safety, and regulatory compliance.

### Q: What standard components are included in a containment hood BOM?
**A**: Standard bill of materials includes: housing frame for structural integrity, access door for maintenance, duct connection flange for ventilation systems, and observation window for process monitoring.

## 6. Manufacturing Compliance
- ISO 14644-1:2015 CLEANROOMS AND ASSOCIATED CONTROLLED ENVIRONMENTS
- ANSI/ASHRAE 110-2016 METHOD OF TESTING PERFORMANCE OF LABORATORY FUME HOODS
- DIN 12924-1:2015 LABORATORY EQUIPMENT - FUME HOODS - PART 1: SAFETY REQUIREMENTS AND TESTING

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Containment Hood](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/containment-hood)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: CONTAINMENT_HOOD | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 6a931f56
