(AIPcF)(n) thin films were exposed to 0(2) or NO2 diluted in N-2. Variations of electrical conductivity and of O-2 or NO2 species mass in the film were simultaneously recorded at room temperature all along exposures to these gases. Experimental results are explained by such phenomena as sorption of O-2 or NO2 in the phthalocyanine film, exchange of sorbed species, and chemisorption (charge transfer).