Comments

Author Comment Last activity Moderation
martenskram "I hate to be pessimistic, but even a medium efficiency supply air filter is probably more effective in removing the dangerous particles (respirable..." | Read more » over 5 years ago
martenskram "Thank you for sharing this very nice project! In a comparable climate zone in southern Sweden we must have more earthworms (eating the dead leaves)..." | Read more » over 5 years ago