... interior harmful gas molecules. 2..Dedicated to the adsorption of formaldehyde, benzenes, ammonia, radon and other harmful gases and ... It can be able to sustain and efficiently absorb of formaldehyde, benzene, xylene, ammonia, radon and other harmful gases indoors. ... moisture can reach to about 40%. 3, Longer-lastingIndoor formaldehyde, benzene and other harmful gases act as the home life inevitably ...