Viral Bacterial Filters for QRS Orbit Portable Spirometer are a bacterial filter designed for pulmonary function testing.

Features:
• Low resistance
• Small dead space
• Safe and highly efficient
• Exceeds ATS & ERS Standards

Technical Data:
• Bacterial-viral filter
• For single patient only
• Hydrophobic, electrostatic filter media
• Bacterial filtration efficiency: > 99.999%
• Viral filtration efficiency: > 99.99%
• Effective dead space: < 50mL