Clean Air Stars
@cleanairstars.com
Non-profit. Helping businesses better protect their customers from viruses like SARS-CoV-2. Fix your air with the guides cleanairstars.com/steps.
Air filter recommendation tool (non-profit) at filters.cleanairstars.com
Air filter recommendation tool (non-profit) at filters.cleanairstars.com
And source control hoods such as this one tested by @simonjoosten.bsky.social
pubmed.ncbi.nlm.nih.gov/35156259/
pubmed.ncbi.nlm.nih.gov/35156259/
December 5, 2024 at 8:02 PM
And source control hoods such as this one tested by @simonjoosten.bsky.social
pubmed.ncbi.nlm.nih.gov/35156259/
pubmed.ncbi.nlm.nih.gov/35156259/
You can also get a 15% CADR boost using the 3rd Party Pureburg filter and simply removing the layer of carbon bsky.app/profile/clea...
December 4, 2024 at 9:03 PM
You can also get a 15% CADR boost using the 3rd Party Pureburg filter and simply removing the layer of carbon bsky.app/profile/clea...
Great insights. Should be noted that if you remove the carbon layer from the Pureburg (easy to do) you actually get a CADR boost above the original OEM filter with the HEPA component being the same thickness. bsky.app/profile/clea...
December 4, 2024 at 8:44 PM
Great insights. Should be noted that if you remove the carbon layer from the Pureburg (easy to do) you actually get a CADR boost above the original OEM filter with the HEPA component being the same thickness. bsky.app/profile/clea...
They are likely the same generic device white labeled under many different brands, but not aware of any specific testing of the Lorell 420 device.
December 3, 2024 at 2:05 AM
They are likely the same generic device white labeled under many different brands, but not aware of any specific testing of the Lorell 420 device.
This specifies the conditions under which that risk was calculated (even then it would be challenging to read this chart reliably due to the additional variables of emission rate which can vary by orders of magnitude due to variables such as emitter’s viral load, vocalisation etc)
November 28, 2024 at 3:57 AM
This specifies the conditions under which that risk was calculated (even then it would be challenging to read this chart reliably due to the additional variables of emission rate which can vary by orders of magnitude due to variables such as emitter’s viral load, vocalisation etc)
You would need to be running them on the lowest speed at 153CFM each unless it was a very noisy classroom and you could run them at a higher speed.
November 21, 2024 at 5:58 AM
You would need to be running them on the lowest speed at 153CFM each unless it was a very noisy classroom and you could run them at a higher speed.
Which is why the presence of multiple whitelabelled versions of the same device can somewhat hedge against this risk. Here is an outdated list of sources for alternative filters simp.ly/publish/0P5fBm
Absolute worse case scenario, the IKEA Starkvind filter is the same width, just a little shorter
Absolute worse case scenario, the IKEA Starkvind filter is the same width, just a little shorter
November 19, 2024 at 11:15 AM
Which is why the presence of multiple whitelabelled versions of the same device can somewhat hedge against this risk. Here is an outdated list of sources for alternative filters simp.ly/publish/0P5fBm
Absolute worse case scenario, the IKEA Starkvind filter is the same width, just a little shorter
Absolute worse case scenario, the IKEA Starkvind filter is the same width, just a little shorter
Thanks to feedback, the air cleaner recommendation tool at filters.cleanairstars.com now allows you to disable the WHO’s minimum 160L/s total clean air delivery rate recommended in the “Infection prevention & control in the context of COVID-19: a guideline, 2023” in the advanced section.
October 18, 2024 at 10:28 PM
Thanks to feedback, the air cleaner recommendation tool at filters.cleanairstars.com now allows you to disable the WHO’s minimum 160L/s total clean air delivery rate recommended in the “Infection prevention & control in the context of COVID-19: a guideline, 2023” in the advanced section.
This recommendation tool has a minimum total flow as recommended by WHO for infection control
October 7, 2024 at 3:43 AM
This recommendation tool has a minimum total flow as recommended by WHO for infection control
We need someone on threads to tell her to federate her account so those on other platforms can still see her content
August 30, 2024 at 9:46 PM
We need someone on threads to tell her to federate her account so those on other platforms can still see her content
Worth noting that the WHO (and the filter recommendation tool) recommend a minimum total clean air delivery of 160L/s (576m3/hr) as per “Infection prevention and
control in the context of
COVID-19: a guideline 2033” for isolation rooms. iris.who.int/bitstream/ha...
control in the context of
COVID-19: a guideline 2033” for isolation rooms. iris.who.int/bitstream/ha...
April 13, 2024 at 8:37 PM
Worth noting that the WHO (and the filter recommendation tool) recommend a minimum total clean air delivery of 160L/s (576m3/hr) as per “Infection prevention and
control in the context of
COVID-19: a guideline 2033” for isolation rooms. iris.who.int/bitstream/ha...
control in the context of
COVID-19: a guideline 2033” for isolation rooms. iris.who.int/bitstream/ha...
“Clean Air Delivery Rate Is All That Matters!” (also noise levels)
itsairborne.com/clean-air-de...
By @joeyfox
#cleanair #hepafilter #hepa #aircleaners
itsairborne.com/clean-air-de...
By @joeyfox
#cleanair #hepafilter #hepa #aircleaners
February 4, 2024 at 7:03 PM
“Clean Air Delivery Rate Is All That Matters!” (also noise levels)
itsairborne.com/clean-air-de...
By @joeyfox
#cleanair #hepafilter #hepa #aircleaners
itsairborne.com/clean-air-de...
By @joeyfox
#cleanair #hepafilter #hepa #aircleaners
Interested to know what these are in the screenshot below.
Do you know what the clean air delivery targets are? Either the space volume (for air changes per hour) or occupancy (for L/p/s)?
Do you know what the clean air delivery targets are? Either the space volume (for air changes per hour) or occupancy (for L/p/s)?
December 7, 2023 at 8:24 AM
Interested to know what these are in the screenshot below.
Do you know what the clean air delivery targets are? Either the space volume (for air changes per hour) or occupancy (for L/p/s)?
Do you know what the clean air delivery targets are? Either the space volume (for air changes per hour) or occupancy (for L/p/s)?
If anyone in the UK has the large Amazon Basics air purifier it would be useful to get some feedback on noise levels at different fan speeds. https://www.amazon.co.uk/dp/B09XXTK7HB?ref_=cm_sw_r_apin_dp_MR8CTG4X3W0A865DGGTX&language=en-GB&th=1
November 28, 2024 at 5:09 AM
If anyone in the UK has the large Amazon Basics air purifier it would be useful to get some feedback on noise levels at different fan speeds. https://www.amazon.co.uk/dp/B09XXTK7HB?ref_=cm_sw_r_apin_dp_MR8CTG4X3W0A865DGGTX&language=en-GB&th=1
We know the risk of transmission of viruses like SARS-CoV-2 during outside interactions is an order of magnitude or less than indoors.
The only question is how we cost-effectively approach this level of risk in our indoor environments.
mas.to/@cleanairsta...
The only question is how we cost-effectively approach this level of risk in our indoor environments.
mas.to/@cleanairsta...
December 4, 2023 at 11:34 PM
We know the risk of transmission of viruses like SARS-CoV-2 during outside interactions is an order of magnitude or less than indoors.
The only question is how we cost-effectively approach this level of risk in our indoor environments.
mas.to/@cleanairsta...
The only question is how we cost-effectively approach this level of risk in our indoor environments.
mas.to/@cleanairsta...
We know the risk of transmission of viruses like SARS-CoV-2 during outside interactions is an order of magnitude or less than indoors.
The only question is how we cost-effectively approach this level of risk in our indoor...
The only question is how we cost-effectively approach this level of risk in our indoor...
November 28, 2024 at 5:09 AM
We know the risk of transmission of viruses like SARS-CoV-2 during outside interactions is an order of magnitude or less than indoors.
The only question is how we cost-effectively approach this level of risk in our indoor...
The only question is how we cost-effectively approach this level of risk in our indoor...
You would want to know whether Trotec had the ioniser activated during their testing which would inflate the CADR and explain the drop in this study if it was used without it.
Ionisers cause PMs to stick to surfaces (including the occupants and potentially their airways) www.epa.gov/sites/defaul...
Ionisers cause PMs to stick to surfaces (including the occupants and potentially their airways) www.epa.gov/sites/defaul...
December 4, 2023 at 9:55 PM
You would want to know whether Trotec had the ioniser activated during their testing which would inflate the CADR and explain the drop in this study if it was used without it.
Ionisers cause PMs to stick to surfaces (including the occupants and potentially their airways) www.epa.gov/sites/defaul...
Ionisers cause PMs to stick to surfaces (including the occupants and potentially their airways) www.epa.gov/sites/defaul...
Excellent study looking at the practical implications and durability of performance of portable air cleaners in classrooms in Germany. Several important lessons to be learned doi.org/10.1080/0278...
December 4, 2023 at 10:54 AM
Excellent study looking at the practical implications and durability of performance of portable air cleaners in classrooms in Germany. Several important lessons to be learned doi.org/10.1080/0278...
A reminder that for air filters, the lowest efficiency of removal is seen for particles around 0.3µm in size. Particles smaller than this are removed by diffusion, those larger by inertial impaction and interception.
November 27, 2023 at 9:34 AM
A reminder that for air filters, the lowest efficiency of removal is seen for particles around 0.3µm in size. Particles smaller than this are removed by diffusion, those larger by inertial impaction and interception.
A reminder that different placement locations of portable air cleaning devices in a space can impact their effectiveness.
Eg if installing a single large device it may be best placed in the mid-way point along the longest wall.
doi.org/10.3390/ijer...
Eg if installing a single large device it may be best placed in the mid-way point along the longest wall.
doi.org/10.3390/ijer...
November 27, 2023 at 8:21 AM
A reminder that different placement locations of portable air cleaning devices in a space can impact their effectiveness.
Eg if installing a single large device it may be best placed in the mid-way point along the longest wall.
doi.org/10.3390/ijer...
Eg if installing a single large device it may be best placed in the mid-way point along the longest wall.
doi.org/10.3390/ijer...
