Air pollution tracking is growing as individuals care more about the environment. Polycyclic aromatic hydrocarbons are dangerous pollutants. This study examines BaP and BeP in indoor air to identify their cancer-causing potential. Household dust may have toxic compounds, making it unhealthy. We took 20 Algerian household dust samples in April 2017. Horizontal surfaces with 0.50 m2 of vertical surfaces were polished with a pre-cleaned filter and cleaned again after 15 days to trap dust in the filter quartz. Ultrasonic bath extraction, pre-treatment, and gas chromatography–mass spectrometric analysis were used. The range is 0.17–0.80, depending on the location. BaP photolysis and particle aging were predicted by rates below 0.3. In the analyzed microenvironment, air amounts were regenerated at sampling. Diagnostic parameters may determine the impact of fuel type (diesel vs. gasoline). However, the average levels of BaP, a compound used as an indicator of PAHs and considered by the WHO as a good indicator of PAH carcinogenicity, range from 0.01 ng/m2 in low-pollution residential areas to 6.73 ng/m2 in urban areas with high-density vehicles. Several combustion methods release the same proportion (1:1) of the non-specific indicator HAPs BaP and BeP into the air. BeP is stable; however, BaP is polluting. The particle-phase reactors adjust the ratio [BeP]/([BeP] + [BaP]). Sunlight and oxidants break it down. Thus, this ratio indicates the number of aging particles in the air, which increases as the air mass ages. This research examined BaP and BeP levels in Algerian indoor dust and sources.