Electrostatic Filter for Peak Flow Meter
GVS Spiroguard utilise an electrostatically charged synthetic media. The positive and negative charge on filter fibres is generated during the manufacturing process and enhances the filter’s ability to attract particulate matter. Unlike other spirometry filters, GVS’s electrostatic filter media is covered in a protective scrim layer. This prevents fibres becoming loose, blocking the spirometer and therefore enhancing protective performance against harmful contamination.
The filter media has hydrophobic properties to minimise droplet contamination, as well as providing a low resistance and low dead space to improve the validity and consistency of respiratory testing results and minimise rebreathing.
Materials
Filter media: Electrostatic Housing: Polypropylene Filter
Media
200 g Electrostatic Blended Synthetic Fiber
Flow Resistance
@ 30 L/min in accordance with EN ISO 9360-1: < 34 Pa (< 0.34 cm H2O)
@ 60 L/min in accordance with EN ISO 9360-1: < 67 Pa (< 0.67 cm H2O)
@ 90 L/min in accordance with EN ISO 9360-1: < 123 Pa (< 1.23 cm H2O)
Filtration Efficiency
BFE 99.9999%* up to 0.027 µm
VFE 99.9998%* up to 0.027 µm
Effective Filtration Area
60 cm²
Pyrogenicity
< 0.25 EU/ml
Dead space
81.5 ml
Weight
37.2 g
Dimensions
h. 85 mm; w. 96.8 mm