Hung appropriately to off-gas | 47 % |
In the dark, protected from UV light | 20 % |
Both | 17 % |
Neither | 17 % |
Total | 30 |
Hung appropriately to off-gas | 47 % |
In the dark, protected from UV light | 20 % |
Both | 17 % |
Neither | 17 % |
Total | 30 |