The Puritan Bennett PB840 RE/X800 Reusable Bacterial Expiratory Filter ( 4-070305-00) is a genuine, high-performance ventilator accessory designed to provide superior bacterial and viral filtration in critical care environments.
Engineered specifically for compatibility with the Puritan Bennett PB840 ventilator system, this reusable expiratory filter plays a crucial role in maintaining infection control, protecting internal ventilator components, and ensuring optimal respiratory system performance.
Manufactured to meet strict OEM quality standards, this reusable bacterial expiratory filter delivers exceptional filtration efficiency while supporting long-term clinical use.
Its durable construction, precise airflow characteristics, and compatibility with RE/X800 expiratory filter assemblies make it a trusted choice for hospitals, ICUs, emergency departments, and biomedical service providers worldwide.
Overview
In mechanical ventilation, the expiratory pathway is a critical point where exhaled gases may contain bacteria, viruses, moisture, and particulate matter. The Puritan Bennett PB840 RE/X800 expiratory bacterial filter is designed to capture these contaminants before they can enter the ventilator’s internal system or the surrounding clinical environment.
This OEM reusable expiratory filter is installed on the expiratory outlet of the PB840 ventilator, providing a protective barrier that helps reduce cross-contamination risks while preserving ventilator functionality. Its reusable design supports cost efficiency without compromising filtration performance, making it ideal for high-usage clinical settings.
Key Product Features
OEM Quality and Original Manufacturing
This product is a new and original Puritan Bennett expiratory filter, manufactured according to the original equipment manufacturer’s specifications. Using genuine OEM components ensures correct fit, proper airflow resistance, and reliable filtration performance over repeated use cycles.
High-Efficiency Bacterial and Viral Filtration
The PB840 reusable bacterial expiratory filter provides extremely high filtration efficiency, effectively capturing bacteria, viruses, and airborne particles present in exhaled gases. This helps protect both the ventilator system and healthcare personnel.
Reusable and Cost-Effective Design
Unlike disposable expiratory filters, this reusable ventilator filter is designed for repeated clinical use when properly maintained according to manufacturer guidelines. This significantly reduces long-term operating costs for hospitals and healthcare facilities.
Optimized for Expiratory Flow
The filter is engineered to maintain consistent expiratory flow with minimal resistance, ensuring that ventilator performance and patient ventilation parameters remain accurate and stable.
Precise Compatibility
Specifically designed for:
- Puritan Bennett PB840 ventilator
- RE/X800 expiratory filter assemblies
Using the correct OEM expiratory filter helps prevent leaks, alarms, or performance issues that may arise from non-compatible aftermarket parts.
Technical Specifications
- Product Type: Reusable Bacterial Expiratory Filter
- OEM Part Number: 4-070305-00
- Ventilator Compatibility: Puritan Bennett PB840 (RE/X800 system)
- Filtration Type: Bacterial and viral filtration
- Usage: Expiratory limb of mechanical ventilator
- Condition: New & Original
- Design: Reusable
- Application: Hospital, ICU, emergency care, critical care ventilation
Why Choose the Puritan Bennett PB840 RE/X800 Expiratory Filter
Reliable Infection Control
In modern healthcare environments, infection prevention is a top priority. The PB840 expiratory bacterial filter provides a critical layer of protection by reducing the release of pathogens from exhaled gases, helping to maintain a safer clinical environment.
Protection of Ventilator Internal Components
By filtering contaminants before they reach the ventilator’s internal systems, this reusable expiratory filter helps extend equipment life, reduce maintenance requirements, and prevent internal contamination.
Designed for Clinical Demands
Built to withstand the rigorous demands of critical care ventilation, this filter supports continuous operation in high-acuity environments where reliability is essential.
OEM Fit and Performance
Using an original Puritan Bennett ventilator filter ensures seamless integration with the PB840 system, avoiding compatibility issues and ensuring compliance with manufacturer recommendations.
Clinical Applications
The Puritan Bennett PB840 RE/X800 reusable bacterial expiratory filter is suitable for use in a wide range of medical settings, including:
- Intensive Care Units (ICUs)
- Emergency Departments
- Operating Rooms
- Long-term acute care facilities
- Respiratory therapy departments
- Biomedical service and maintenance programs
Its dependable performance makes it a preferred choice for facilities that require consistent infection control and ventilator reliability.
Compatibility Information
This product is specifically designed for use with:
- Puritan Bennett PB840 Ventilator
- RE/X800 Expiratory Filter System
Using the correct part number (4-070305-00) is essential to ensure proper installation, sealing, and expiratory flow performance. Always verify compatibility before purchase.
Reusable Design and Maintenance Considerations
As a reusable expiratory bacterial filter, this product is intended for repeated use following proper cleaning, disinfection, or sterilization procedures as recommended by the manufacturer or hospital protocols. Correct maintenance helps preserve filtration efficiency and ensures patient safety.
Reusable ventilator accessories like this filter are commonly selected by healthcare facilities aiming to balance performance, safety, and cost efficiency.
Benefits for Hospitals and Healthcare Facilities
- Reduced consumable costs compared to disposable filters
- Reliable OEM performance
- Enhanced infection control measures
- Long-term durability
- Trusted compatibility with PB840 ventilators
The Puritan Bennett PB840 RE/X800 reusable expiratory filter is a strategic investment for facilities seeking dependable ventilator accessories without compromising clinical standards.
Packaging and Quality Assurance
Each unit is supplied as a new and original OEM product, carefully packaged to protect against damage during storage and transport. Quality checks ensure that the filter meets the required performance and safety standards before delivery.
Frequently Asked Questions
What is the part number for this expiratory filter?
The official OEM part number is 4-070305-00.
Is this an original Puritan Bennett product?
Yes. This is a new and original OEM Puritan Bennett reusable bacterial expiratory filter.
Which ventilator models are compatible with this filter?
This filter is specifically designed for the Puritan Bennett PB840 ventilator using the RE/X800 expiratory system.
Is this filter disposable or reusable?
This is a reusable expiratory filter, designed for multiple uses when properly maintained according to recommended procedures.
What is the function of an expiratory bacterial filter?
An expiratory bacterial filter captures bacteria, viruses, and particles from exhaled gases to help prevent contamination of the ventilator and the surrounding environment.
Can I use this filter with other Puritan Bennett ventilators?
This filter is intended for PB840 systems only. Using it with other ventilator models is not recommended unless specified by the manufacturer.
Why should I choose an OEM expiratory filter instead of a third-party alternative?
OEM filters ensure correct fit, proper airflow characteristics, reliable filtration efficiency, and full compatibility with the ventilator system.
Does this filter affect ventilator performance?
When used correctly, the PB840 reusable expiratory filter is engineered to maintain stable expiratory flow with minimal resistance.
Is this filter suitable for ICU use?
Yes. It is designed for high-demand clinical environments, including ICUs and critical care units.
How should this filter be maintained?
Maintenance and reprocessing should follow the manufacturer’s guidelines or your facility’s approved protocols for reusable ventilator components.




















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