regen

4 ms·

1. 1.▲
   by regen 6y ago

   Love the idea but revokation became the problem now
2. 2.▲
   by regen 6y ago

   A few cm are enough
3. 3.▲
   by regen 6y ago

   Mine from Amazon is accurate enough to remind me of opening the window
4. 4.▲
   by regen 6y ago

   It still takes time for outdoor normal co2 level to reach those levels. We gain 2 co2 per year. And you can have an indoor garden