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Table 1 Characteristics of the items of equipment used in the study

From: Effect of negative air ions on the potential for bacterial contamination of plastic medical equipment

Item of Equipment Description Component Tested Component Material Characteristic Dimension Relative Electrical Permittivity @ 1 Mhz
Ventilator tubing Parallel twin plastic ventilator tubes (1.6 m long) Centre portion of tube Low density polyethylene (LDPE) 25 mm external diameter tube 2.2 - 2.35
Ventilator Mask Single port mask with attachment for ventilator tubing Mask Cushion Thermoplastic elastomer
(TPE)
Height: 110 mm
Width: 85 mm
Depth: 42 mm
Unknown
Nebulizer tubing Nebulizer with reservoir tubing Reservoir tubing Polyvinylchloride (PVC) 6 mm external diameter tube 2.8
Unometer™ box and tubing Urological collection and monitoring system with collection bag Plastic measuring box Styrene acrylonitrile (SAN) Height: 105 mm
Width: 180 mm
Depth: 45 mm
2.55 - 2.95
Unometer™ box and tubing Urological collection and monitoring system with collection bag Tubing Polyvinylchloride (PVC) 9 mm external diameter tube 2.8
Disposable Apron Plastic disposable Apron Apron Polyethylene (PE) 265 mm × 275 mm 2.3