Airsentry® uses filtration to remove pathogens based on size, rather than needing to be pathogen specific. This makes it highly effective on viral particles that are airborne. The diluting effect of ultra clean air reduces inhalation risk to near zero within any enclosed room while the air stream dries what is attached to the bromide coat.
There is a similar perceived error occurring with COVID-19, which has similarities to H1N1 swine ‘flu. While these are different pathogens, both have aerosols as a transmission pathway.
These tend to be seen as ‘raindrop’ aerosols, falling rapidly to surfaces and not held in air suspension for more than a few minutes. This is certainly a core aspect of contamination.
Behind this are respiratory aerosols, micro-particles that can stay in air suspension far longer. These are produced with each tidal breath and with COVID-19 can stay in room air for up to 3 hours before touching a surface.
This link is to a recent paper that supports this finding.
This means that in non-specialist facilities there is an exponential risk to health care staff not wearing fully enclosed PPE.
As we saw in 2009, even in full PPE within a specialist facility, a risk still exists due to inadvertent touch or eye exposure. COVID-19 does not appear as virulent when inhaled as H1N1, but that risk remains.
Applications for Airsentry within the current global environment are:
- Staff protection within Isolation rooms
- Staff protection within Infectious disease units
- Staff and patient protection in ward areas – especially high risk areas i.e. oncology etc.
- Step-down units
- Transformation of any room into an Isolation level facility
- Quarantine areas, reducing changes of interpersonal transmission within enclosed areas
- Prison areas
In all uses there will be a reduction in precipitation onto surfaces and a greatly reduced chance of pathogen egress from an area.
Airsentry® is a highly specialised air system operating to the highest filtration standard, EN14644.
It is not a panacea. It operates to make existing infection control procedure more robust, protecting staff and patients.