There is no evidence that face masks are effective in reducing the risk of catching or spreading the virus and are not recommended for use by the general population. They are only effective for use in a healthcare setting. In most clinical situations, a patient admitted to hospital with suspected swine flu or its complication, they will be managed in isolation and barrier nursed. Healthcare professionals should don a plastic apron and surgical face masks, observing strict hygiene measures. The respirator masks (FFP 3 masks) should only be used when potentially aerosol generating procedures are used e.g. in ventilated patients or those using nebulisers.