When HN users recommended it
1 HN user recommended this in 2022, 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 2022, 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.
Interesting. Did a little more digging and it looks like both are used for air dusters, with 134a being marketed for "energized circuits" because it's non-flammable (e.g. https://www.amazon.com/dp/B005DNR066). 152a has ~1/10 of the GWP as 134a.
In any case, it's still amazing to me how restricted these are when used as a refrigerant, but then they're sold to consumers to spray on whatever they want. It really undercuts the environmental impact of these chemicals.