Pre Filter

CBRN Filtration Pre-Filter for CBRN collective protection systems PRE-FILTER / PARTICLE STAGE
CBRN Pre-Filtration

Pre-Filter

Pre-Filter is a compact particle pre-filtration component designed for CBRN collective protection systems in military and civilian applications. Installed upstream of primary filtration stages, it reduces particulate load in low-flow environments and supports more efficient downstream filtration.

Air Flow Resistance800 Pa
Local Outturn99.97 / 99.97%
Weight0.9 kg ± 0.1 kg
Dimensions9.5 × 13.8 × 17.6 mm

Compact particle pre-filtration for low-flow CBRN collective protection architectures.

Compact Particle Pre-Filtration for CBRN Systems

The primary purpose of the Pre-Filter is to capture particulate matter from incoming air before it reaches the main filtration stages of a CBRN system.

By acting as a preliminary filtration barrier, the unit reduces particulate loading on downstream filters, supports overall system efficiency and contributes to longer service life of the primary CBRN filtration elements.

01 / DEPLOYMENT

Low-Flow Collective Protection Applications

Pre-Filter is suitable for CBRN collective protection systems where compact size and low-flow operation are required. Typical applications include military vehicles, shelters, mobile protection units and civilian installations using particulate pre-filtration as part of a CBRN air-management system.

Its compact format supports integration into confined layouts where available installation space is limited.

Filtration
Stage
Particle
Pre-Filter

Air Preparation Before Advanced Filtration

The Pre-Filter functions as an early particle filtration stage within a CBRN collective protection architecture. Incoming air passes through the compact element before reaching advanced gas or composite filtration stages.

This arrangement reduces the particulate concentration presented to downstream filtration components and supports more stable filtration performance over sustained operation.

Configuration & Design

Key Pre-Filter Features

01

Particle Pre-Filtration

Captures particulate matter before incoming air reaches the main CBRN filtration stages.

02

Compact Structure

Designed as one of the smallest combination filtration elements used in CBRN collective protection architectures.

03

Low-Flow Operation

Developed for applications requiring particle pre-filtration in low-flow CBRN environments.

04

Downstream Filter Support

Reduces particulate load reaching primary filters and supports longer downstream filter service life.

05

Confined-Space Integration

Compact dimensions support installation within restricted CBRN system layouts.

06

Military & Civilian Use

Suitable for collective protection applications across both military and civilian installations.

System Architecture

Pre-Filtration Configuration

STAGE / 01

Incoming Air

Function
Air Entry
Condition
Particulate Contaminants
STAGE / 02

Pre-Filter

Function
Particle Pre-Filtration
Resistance
800 Pa
STAGE / 03

Downstream Filtration

Function
Advanced Filtration Stage
Support
Reduced Particulate Load
Deployment Areas

Operational Applications

Military Vehicles
Military Shelters
Mobile Protection Units
Civilian Installations
CBRN Collective Protection
Low-Flow Air Management
02 / FUNCTIONAL ROLE

Reducing Particulate Load at the First Filtration Stage

Pre-Filter continuously removes particulate contaminants from incoming air at low flow rates so that cleaner airflow reaches downstream CBRN filtration elements.

By reducing particle concentration early in the filtration process, the unit supports system reliability, sustained operation and lower maintenance demand in military and civilian CBRN protection applications.

Engineering Reference

Collective Protection Integration

The supplied product information states that the Pre-Filter is designed for integration into CBRN filtration architectures developed according to military-grade engineering protocols applied to collective protection systems.

Military-Grade Engineering Protocols
Collective Protection Systems
FAQ / 05

Frequently Asked Questions

01 What is the main function of the Pre-Filter?

The Pre-Filter removes particulate matter from incoming air before it reaches the main CBRN filtration stages.

02 Is the Pre-Filter suitable for both military and civilian use?

Yes. The Pre-Filter is designed for use in both military and civilian CBRN collective protection systems.

03 Where is the Pre-Filter typically installed in a CBRN system?

It is installed upstream of the primary filters as a particle pre-filtration stage.

04 What makes the Pre-Filter suitable for compact systems?

Its small size and low-flow design allow integration into confined CBRN system layouts.

05 Does the Pre-Filter extend the life of main CBRN filters?

By reducing particulate load before the main filtration stages, the Pre-Filter helps extend the service life of downstream filters.

Pre-Filter Specifications

Technical Data

Air Flow Resistance 800 Pa
Local Outturn % 99.97 / 99.97
Weight 0.9 kg ± 0.1 kg
Dimensions 9.5 mm × 13.8 mm × 17.6 mm
Fire Bulgaria / Product Support

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