When HN users recommended it
1 HN user recommended this in 2020, in one comment.
20072026
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
1 HN user recommended this in 2020, in one comment.
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
OP comment: Here's a link that supports the idea https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4699414/
Also clickable links for the Amazon items mentioned in the post:
https://www.amazon.com/Light-Clean-Ozone-minutes-Capacity/dp...
https://www.amazon.com/gp/product/B00FB140TU/ref=ppx_yo_dt_b...