Activated carbon will absorb odours and objectionable gases by up to _____ of its own weight before requiring replacement.
a. 10%
b. 20%
c. 30%
d. 40%
e. 50%
Answer: B
Activated carbon will absorb odours and objectionable gases by up to _____ of its own weight before requiring replacement.
a. 10%
b. 20%
c. 30%
d. 40%
e. 50%
Answer: B