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Introduction |
| Use this guide to replace the oxygen sensor on a Puritan Bennett 840 ventilator. | | | | | The oxygen sensor should be replaced every two years for preventative maintenance. If being used very frequently, or the oxygen sensor starts to fail, replace as often as necessary. | | | | | When servicing the ventilator, be sure to familiarize yourself with, and adhere to all posted and stated safety warning and caution labels on the ventilator and its components, and on any service equipment and materials used. Failure to adhere to such warnings and cautions at all times may result in injury or property damage. | | | | | Puritan-Bennett recommends that customers and technical services personnel follow local governing ordinances and recycling instructions regarding disposal or recycling of battery or other device components. |
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