Fig. 3From: Adsorbent media for the sustainable removal of organic air pollutants from museum display casesStandardized decay curves of formaldehyde under active conditions after passing the adsorbent beds. Adsorbent media are representatively selected for each sorbent group. Occurred breakthrough after 24 h is marked with an asterisk. PC1: pure activated carbon (unimpregnated coconut shells), IC7: charcoal impregnated with NaMnO4, CC10, alkaline impregnated charcoal cloth, Z6: synthetic zeolite (type X crystal), SG2: silica gel (90% SiO2; lithium chloride). For further information, refer to Table 3Back to article page