Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
drited
on Sept 14, 2021
|
parent
|
context
|
favorite
| on:
Experiments on a $50 DIY air purifier (2020)
Interesting thanks! So I guess you change them weekly then?
Consider applying for YC's Winter 2027 batch!
Applications
are open till November 2.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
