The activated carbon in the GC MultiGas preserves the maximum number of micropores. The GC MultiGas packs the chemical removal power of more than 100 gas masks.
The GC MultiGas features the best media in the industry combined with superior filter design to provide an unequaled level of protection against gases, odors, and chemicals. The four disposable gas-phase filter cartridges of the GC MultiGas feature 12 lbs. (5.4 kg.) of the highest-grade activated carbon from bituminous coal, not the lower-quality coconut-shell carbon others use. The activated carbon media is activated in a way to preserve the maximum number of micropores.
IQAir also does not use zeolite, another less effective and less expensive filtration medium. Alumina pellets impregnated with potassium permanganate remove formaldehyde from the air. The cylindrical shape of the GC MultiGas cartridges allows for optimal contact between the air and the filtration media, while offering very low air restriction. Meanwhile, post filters wrap each cylinder, preventing any media dust from being released while further improving overall system efficiency.