Big Ass Fan’s Clean Air System

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.

Re: Big Ass Fan’s Clean Air System

#6

Post by born_a_skeptic » Sun, Nov 08, 2020, 7:53 PM UTC

throwawaysea wrote: post #5

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). ——— ION TECHNOLOGY M…

why is ozone free important?

Re: Big Ass Fan’s Clean Air System

#7

Post by tuatoru » Sun, Nov 08, 2020, 7:55 PM UTC

born_a_skeptic wrote: post #6

throwawaysea wrote: post #5

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). ——— ION TECHNOLOGY M…

why is ozone free important?

Ozone 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.

Re: Big Ass Fan’s Clean Air System

#8

Post by [deleted] » Sun, Nov 08, 2020, 7:55 PM UTC

born_a_skeptic wrote: post #6

throwawaysea wrote: post #5

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). ——— ION TECHNOLOGY M…

why is ozone free important?

[deleted]

Re: Big Ass Fan’s Clean Air System

#9

Post by 01100011 » Sun, Nov 08, 2020, 7:57 PM UTC

born_a_skeptic wrote: post #6

throwawaysea wrote: post #5

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). ——— ION TECHNOLOGY M…

why is ozone free important?

Ozone 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.

Re: Big Ass Fan’s Clean Air System

#10

Post by throwawaysea » Sun, Nov 08, 2020, 7:58 PM UTC

born_a_skeptic wrote: post #6

throwawaysea wrote: post #5

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). ——— ION TECHNOLOGY M…

why is ozone free important?

Here is the EPA’s explanation https://www.epa.gov/indoor-air-quality-iaq/what-are-ionizers...