Filter Pack NBCF305

Product Description

The Castellex NBCF305 replacement filter pack is designed for Castellex Air300 and Air500 series three-stage NBC air filtration systems. Suitable applications include nuclear bunkers, panic rooms, bomb shelters, and domestic or commercial environments at high risk of pollution or attack. The filter pack combines an F7 pre-filter, an H14 HEPA filter and an activated, TEDA-impregnated carbon filter for particle and gas filtration.

Features

Designed to help protect against a wide range of airborne contaminants, including:

• Warfare gases
• Biological contamination
• Radioactive particles
• Radioactive iodine and organic iodine compounds
• Acidic gases
• Volatile organic compounds (VOCs)

Technical Specifications

• Model: NBCF305
• Compatible systems: Castellex Air300 and Air500
• Nominal airflow: up to 150 m³/h
• Carbon filter: activated, TEDA-impregnated carbon, MIL-DTL-32101
• HEPA filter grade: H14, EN 1822-4
• Pre-filter grade: F7, EN 779:2012
• System efficiency: 99.995%
• Carbon filter housing: zinc-galvanised steel; 316 stainless steel available as an option
• Housing finish: natural or powder-coated (optional)
• Package dimensions: 34 × 34 × 55 cm
• Packaging: rigid cardboard box
• Gross weight: 17.5 kg

H14 HEPA Filter

• Model: H305
• Filtration class: H14
• Frame dimensions: 305 × 305 × 78 mm
• Nominal airflow: 150 m³/h
• Pressure drop: 200 Pa
• Filtration efficiency: 99.995%

Each HEPA filter is tested and supplied with a test report. The datasheet references EN 1822-4 and EN 10204-2.2.

F7 Pre-filter

• Model: F305
• Filtration class: F7
• Frame dimensions: 305 × 305 × 60 mm
• Frame material: galvanised steel
• Filter media: F7 synthetic media with integrated nanofibre
• Nominal airflow: 200 m³/h
• Initial pressure drop: 150 Pa
• Average arrestance: 93.4%
• Average efficiency: 92.7%
• Test airflow: 500 m³/h
• Final pressure drop: 450 Pa
• Test standard: EN 779:2012
• Test reference: IR121001_PL8 RI02

Activated Carbon Specifications

The datasheet lists the following specifications with reference to MIL-DTL-32101:

• Moisture: maximum 3%
• Bulk density: maximum 0.680 g/ml
• BET surface area: minimum 900 m²/g
• Ball-pan hardness: minimum 90%
• Copper content: maximum 6%
• Silver content: 0.03–0.1%
• Zinc content: maximum 6%
• Molybdenum content: maximum 2.5%
• TEDA content: maximum 3.5%

Carbon Gas Sorption Test Data

Test Gas	Unaged Carbon (minutes)	Aged Carbon (minutes)
AC — Hydrogen cyanide	30	28
CK — Cyanogen chloride	55	45
CG — Phosgene	25	20
DMMP — Dimethyl methylphosphonate	175	175

Test standard: MIL-DTL-32101. These figures relate to the specified carbon test conditions and do not represent the filter pack's service life in use.

Package Contents

• F7 pre-filter
• Activated carbon filter
• H14 HEPA filter