Cleaning and Disinfection Guidelines for DeVilbiss Oxygen Concentrators
Thursday, 19 March 2020 | Alex
During the recent outbreak of coronavirus (COVID-19), oxygen concentrators have become increasingly important to ensure that affected patients can breathe. With this, the question has arisen about the best practice for ensuring that disease is not spread further when equipment is being used by multiple patients.
Can Coronavirus Survive on Medical Equipment?
Due to how quickly COVID-19 has spread, there has not been enough time to perform rigorous scientific analysis of this particular strain of coronavirus. We can however have a look at data gathered on similar strains of coronavirus such as SARS and MERS.
In a study on the persistence of coronaviruses on inanimate surfaces, it was concluded that "human coronaviruses can remain infectious on inanimate surfaces for up to 9 days". It goes on to state, however, that "surface disinfection... significantly reduces coronavirus infectivity within 1 min exposure time", meaning that proper disinfection can reduce the risk of sharing medical devices.
What Type of Disinfectant Should Be Used?
Studies have validated the use of diluted bleach solutions as being highly effective and efficient disinfectants for human coronavirus. As well as this, a study from the American Journal of Infection Control suggests that ethanol-based sanitisers are also very effective in reducing infectivity.
Which Oxygen Concentrators Is This Advice For?
This advice has been recommended by DeVilbiss about these specific models:
Current Cleaning and Disinfection Method
For the oxygen concentrators mentioned above, a cleaning and disinfection protocol can be found in the user manual under the section titled "Provider Notes-Cleaning and Disinfecting When There is a Patient Change". In addition to this protocol, it is recommended that you follow any infection precautions outlined by your medical establishment.
The DeVilbiss cleaning and disinfection protocol uses a diluted chlorine bleach (sodium hypochlorite) solution. This method has been validated by a third-party laboratory and is effective against myriad pathogens including (but not limited to) the following:
How Is the Diluted Bleach Solution Made?
The diluted bleach solution required for cleaning the exterior is based on the use of a standard 5.25% chlorine bleach mix of one part bleach and four equal parts water with a 10 minute contact time. This formula products a 1% (or 10,000ppm) bleach solution, which is approximately 5 to 10x stronger than solution proven in studies to deactivate coronavirus on hard surfaces and inanimate objects.
How Often Should I Change Filters?
The relevant DeVilbiss Oxygen Concentrators feature three filters:
Although not required as part of preventative maintenance, for people looking to use the highest level of caution in the current environment, in addition to the cleaning and disinfection instructions outlined above you should consider changing all filters between patient use.
Do you have any additional questions about the cleaning or maintenance of your device? Contact our Customer Care team at firstname.lastname@example.org.