AAirDS

"In terms of efficacy, across both ward pairs, ACUs were associated with a non-significant trend of reducing ward-acquired SARS-CoV-2 infections (core study period: 10% lower hazard; Extended data: 22% lower hazard)." @EvonneTCurran sciencedirect.com/science/articl…

Result from @AAirDStudy TLDR; - compliance issues, but there was still a signal that air cleaning units may reduce risk of SARS-COV-2 infection. Add this to other studies we know about and evidence is stacking up. #CleanAir

@janestevenson68 @CliveBeggs That prior study was for 3 weeks, did not examine infections, and was conducted in a bay not an entire ward. AAirDS was conducted to examine whether reductions in bio burden seen previously translated into reduced infections over a longer, 1 yr timescale and larger spatial area.

The clinical results of the Addenbrooke's air cleaning study have now been published in JHI sciencedirect.com/science/articl…. You can find out more at mrc-bsu.cam.ac.uk/news/new-evide…. Very pleased for all my colleagues who put in a lot of hard work. Well done. #Covid #COVIDisAirborne #SARSCoV2

Air cleaning units Air cleaning Air quality measuring, these should all be the focus of IPC going forward. This is the start of nosocomial covid prevention for pts and staff. Get on board. sciencedirect.com/science/articl…

The system is working as intended... This thread explains a lot on the covid horrorshow but will be ignored because it doesn't fit NPC narratives. In 2020 I said the official slogan should change to include VENTILATE. This never happened. One of the weirdest most interesting things on covid is the extreme resistance across bureaucracies to accepting it was mainly airborne therefore VENTILATION was critical You can see this in Ritchie's bullshit. And note she remains in charge. And obviously got an OBE. Many such cases... The system is working as intended

Great to see this first results report from @AAirDStudy out (main paper to follow). Important results. When we showed that HEPA cleared #Covid_19 from the air people said “just implement it, don’t study it” and we said “it’s important to see to implement it”. Well here we are👇

@AAirDStudy results finally in print. sciencedirect.com/science/articl…

Latest output ⬇️⬇️⬇️⬇️⬇️⬇️

Great session by chair Joanna Walker @NHSLanarkshire alongside Christine Peters @NHSGGCeHealth and Jim Gray @BWC_NHS to discuss 'Lessons for Future Pandemics'. #FIS2023

Apologies for the pay wall, but nice to see some reporting on the fact that we don't even need to rely on an understanding of physics any more - #CleanAir improves children's health in an RCT. What's the air quality like in your workplace? newscientist.com/article/239871…

Nature research paper: The burden and dynamics of hospital-acquired SARS-CoV-2 in England go.nature.com/3tLK23W

Thank you @NicPalin. We certainly do find this interesting. It is part of the @AAirDStudy. Give them a follow and read their website here: aairds.com

@contempl8ive @mjb302 @NHSEngland So "treading carefully" tried in vain, To prove its worth, but all was inane. For it never aspired, Nor took risks that inspired, And achievement, it never could attain. Fin/

@contempl8ive @mjb302 @NHSEngland For it failed to appease The bold and the brave, who employed. In life's grand dance, risks must be taken, For timid souls may find themselves forsaken. While caution has its place, To achieve a winning embrace, Boldness, too, must not be shaken.

Application of high efficiency particulate air (𝗛𝗘𝗣𝗔) filter & ultraviolet (𝗨𝗩𝗖) devices for air cleaning in occupied healthcare spaces: guidance and standards @NHSEngland webinar. 𝗙𝗿𝗶𝗱𝗮𝘆 𝟭𝟰𝘁𝗵 𝗝𝘂𝗹𝘆 𝟮𝟬𝟮𝟯 𝗟𝗜𝗡𝗞: bit.ly/NHSE-HEPA-UVC

@DaddyDaragh @mishwoz @DrPieterPeach @CleanAirClassrm @AAirDStudy @RobynSchofield3 @PeteUK7 @joeyfox85 @CathNoakes @DavidElfstrom @JimRosenthal4 @PrasadKasibhat1 @educationgovuk @UKHSA Definately. We are utilising CFD simulations via @Dassault3DS including pre-existing heating sources, impact of natural ventilation use in a winter scenario and addition of HEPA/Filtration to the mix to try and establish carbon impact. The @AAirDStudy is also examining ABX use

@mishwoz @mjb302 @DaddyDaragh @DrPieterPeach @CleanAirClassrm @RobynSchofield3 @PeteUK7 @joeyfox85 @CathNoakes @DavidElfstrom @JimRosenthal4 @PrasadKasibhat1 @educationgovuk @UKHSA @Dassault3DS Unfortunately we weren't able to do that @mishwoz due to events outside our control. As you know HEPA is least effective at particles of size 0.3um. Given the virus is 0.1um & has been shown to be stable in aerosols 0.3um in size 2 yrs ago we decided it was safer to have UVC.

@mjb302 @DaddyDaragh @DrPieterPeach @CleanAirClassrm @AAirDStudy @RobynSchofield3 @PeteUK7 @joeyfox85 @CathNoakes @DavidElfstrom @JimRosenthal4 @PrasadKasibhat1 @educationgovuk @UKHSA @Dassault3DS Oh that's good Additional energy saving comparison with the UV bulb removed could be added to the mix

For HEPA in a large space with limited placent options (sockets/patients/beds etc) some companies seem to install appropriateCADR units and that's it. Shouldn't we be test IAQ (PMs) as part of a commissioning process? @DavidElfstrom @CathNoakes @JimRosenthal4 @PrasadKasibhat1

@DaddyDaragh @mjb302 @DrPieterPeach @mishwoz @RobynSchofield3 @PeteUK7 @CleanAirClassrm @joeyfox85 @CathNoakes @DavidElfstrom @JimRosenthal4 @PrasadKasibhat1 @educationgovuk @UKHSA They are bagged before removal so this is minimised. Changes are also conducted away from the clinical area.

@mjb302 @DrPieterPeach @mishwoz @RobynSchofield3 @PeteUK7 @CleanAirClassrm @joeyfox85 @CathNoakes @DavidElfstrom @JimRosenthal4 @PrasadKasibhat1 @educationgovuk @UKHSA @AAirDStudy I don’t see how that can be effective on the parts of the filter not directly exposed to the UV. When the filters are removed, is there not a potential for dislodging of non-irradiated material to become airborne?