The bottleneck might be the air in the room(blog.mikebowler.ca)
756 points by gslin | 430 comments
Blog post by Mike Bowler arguing that rising CO2 levels in meeting rooms degrade decision-making quality during long meetings.
#indoor-air-quality on Hacker News
3 stories tagged indoor-air-quality, newest first.
OpenERV(openerv.ca)
739 points by graboy | 233 comments
Homepage of OpenERV, an open-source energy recovery ventilator project offering source code, a store, and information about the device.
Mold Course(epa.gov)
370 points by tosh | 147 comments
Introduction page to the US EPA's free online Mold Course, covering mold basics, remediation, and continuing education credit options.