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Here is information on their Ion cleaning system, which interestingly is ozone free (unlike many typical home ionizing air filters). If just ion generation is e
by throwawaysea 6y ago
Here is information on their Ion cleaning system, which interestingly is ozone free (unlike many typical home ionizing air filters). If just ion generation is enough to reduce viral load so effectively, then that is a big boost to reducing indoor transmission rates (effectively reducing R0), and would be comparatively cost effective next to HEPA filtering large spaces (think: a Costco warehouse).
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ION TECHNOLOGY
MORE IONS, MORE DISINFECTION
Clean Air System’s certified ozone-free ionizers generate tens of thousands of ions per second, safely eliminating airborne and surface pathogens and resulting in fresher, cleaner conditions. The ionizers’ precise integration allows for maximum ion production and delivery throughout your space.
DISTRIBUTED BY AIRFLOW
Our fans’ airflow amplifies not only the number of ions that are generated but also their effective coverage areas. Aside from disinfecting air and surfaces, our fans’ airflow improves occupant comfort, HVAC efficiency, and energy savings, providing real benefits for business owners.
KILL VIRUSES WHERE PEOPLE BREATHE
An ion’s lifetime is only about 30 seconds, so it’s essential that ions be delivered to the air your people breathe and the surfaces that they touch. Rather than concealing ionizers within ductwork, Big Ass Fans integrates ionizers into our fans to distribute ions directly to your people.
- born_a_skeptic 6y agowhy is ozone free important?
- tuatoru 6y agoOzone is toxic. Great at high altitude for reducing UV transmission, not so good on the surface. ETA: Negative ion generation, done badly, can result in ozone production.
- deleted 6y ago[deleted]
- 01100011 6y agoOzone is a pretty damaging chemical. It is very reactive with its extra oxygen atom. It can damage living and non-living things, although in small quantities it probably isn't an issue. Ozone is great at high altitudes where it can block some UV light.
- jaclaz 6y agoAnd I would add that - seemingly - to reduce the amount of bacteria a very high concentration is needed for long periods. I found this "experiment"[1], this is about cleaning/disinfecting a room, by starting an ozone generator in a closed room, keep the ozone level at a certain value for a given time, then switch off the generator and wait at least one hour before re-entering the room: https://www.ozonetech.com/sites/default/files2/pdf/Ozone_disinfection_of_SARS_Contaminated_Areas.pdf https://www.ozonetech.com/sites/default/files2/pdf/Ozone_dis... BTW such a high concentration is likely to affect contents of the room, ozone can accelerate oxydation of most metals and rubber. [1] it looks like a scientific paper, but it is not AFAIK published and actually comes from the site of a firm making ozone generators, so I would take results about the effectiveness with a pinch of salt, but I don't see how the dangers implied can have been overstated
- throwawaysea 6y agoHere is the EPA’s explanation https://www.epa.gov/indoor-air-quality-iaq/what-are-ionizers-and-other-ozone-generating-air-cleaners https://www.epa.gov/indoor-air-quality-iaq/what-are-ionizers...