Filters

The Medisize® Blue HMEF filters are a combined heat and moisture exchanger with a filter for bacteria and viruses. The filters are intended to take over the function of the upper part of the patient’s respiratory tract during periods of artificial respiration in intensive care units or when under anesthesia. The filters can, in consultation with the doctor, be used as an alternative to an active humidifier. The filters are intended for patients with a breathing volume of more than 150ml. The filters come with a luer-lock

Bacterial and viral depth filter specifications include:

• Flow Resistance (cmH2O @ L/min): 2.1 @ 60
• Dead space 29 mL
• Weight: 19.8g
• Tidal volume: >125mL
• Media: Electrostatic Filter
• Port: None
• Bacterial Efficiency: 99.999%
• Viral Efficiency: 99.999%

Filter specifications include:

• Flow Resistance (cmH2O @ L/min): 2.0 @ 60
• Dead space 80 mL
• Weight: 37g
• Tidal volume: 300-1200mL
• Media: Hydrophobic Paper
• Port: None
• Bacterial Efficiency: 99.99999%
• Viral Efficiency: 99.9999%

Electrostatic filters use a medium constructed of permanently bi-polar charged, rectangular split fibers that are able to capture airborne particles. This type of filter is recommended for applications where high efficiency and low pressure drop is required. It offers excellent efficiency for anesthetic breathing filters and pulmonary filters.

The adult VentiShield range of filters provide 99.999% efficiency within a compact, lightweight rounded design ideal for patient end use with an ET Tube or Laryngeal Mask Airway.

Universal Connections
The 22mm M/15mm F connectors comply to BS EN ISO 5356 standards. The design of the filter connectors prevents fitting of the filter in the wrong direction within the system.

Reduced Drag on Breathing System
The light weight of the VentShield filters and HMEF reduces the drag on the breathing system.

Reduced Risk of Pressure Marks
The rounded shape with no sharp edges reduces the risk of leaving pressure marks on the patient.

• Bacterial filtration efficiency (BFE) - 99.9%
• Viral filtration efficiency (VFE) - 99.7%
• Flow resistance at 1.0L/sec - 0.54 cm H2O
• Flow resistance at 1.0L/sec after 48 hrs - 0.90 cm H2O
• Compressible volume - 43 mL

Filter specifications include:

• Flow Resistance (cmH2O @ L/min): 2.32 @ 60
• Dead space 103.8 mL
• Weight: 40.1g
• Tidal volume: 300-1200mL
• Media: Hydrophobic Paper
• Port: Yes
• Bacterial Efficiency: 99.99999%
• Viral Efficiency: 99.9999%

• 22mm ID x 15mm ID/22mm OD connections
• Bacterial filtration efficiency: 99.999+%
• Viral filtration efficiency: 99.99+%
• Dead space: 42ml
• Flow resistance: approximately 1.5 cmH2O at 60 LPM

• Replacement
• Disposable

• Cross-contamination efficiency of 99.999%
• Meets ATS air resistance standards
• Dead space of 60 cc
• Pleated media for better functionality
• Compact, non-intimidating design
• Transparent for easy, 100% visual inspection
• The Klip™ Nose Clip

• Cross-contamination efficiency of 99.999%
• Meets ATS air resistance standards
• Dead space of 64 cc
• Pleated media for better functionality
• Compact, non-intimidating design
• Transparent for easy, 100% visual inspection

• 10 mm OD x 10 mm OD
• Internal Volume 8.8 cc
• Clear Housing
• Bi - Directional
• Non Conductive
• Disposable
• Single-patient use

Westmed's breathing filters are the optimal choice for enhancing the effectiveness of any breathing system. With bacterial/viral filtration efficiencies in excess of 99.9% and high moisture retention characteristics, Westmed offers the right product, for the right application, for the right price.

• Vt Range: 150-1500mL
• Moisture Output: 12 mgH2O/L @ vt 1000mL
• Resistance to Flow: 2.05cmH2O @ 30Lpm, 7.18cmH2O @ 60Lpm
• Bacterial/Viral Filtration: 99.9999%
• Dead Space: 33.58mL

All quoted performance figures are mean values.  

• 41Ml Compressible Volume

• Luer gas sampling ports
• ISO-standard connections for secure, leak-resistant attachment to breathing systems