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- Low purity alarm: when oxygen purity is above 82%, it will give green light; when the purity is blow 82%( 82% not included), it will give red light
- Maintenance alarm: alarm for maintenance after 3000 hours operation
- Alarm for high temperature inside systems above 50°C
- Pulse oximeter: fingertip pulse oximeter is available for monitoring patient oxygen saturation on site.
- Small LCD display: accumulating time; present working time presetting time.
- Double flow.
- Optional: Nebulizer, Pulse oximeter