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[PubMed: 8536691] Becker S, Soukup JM, Gilmour MI, Devlin RB

Enzyme cleaners work by releasing specialized bacteria that effectively "eat" the organic proteins and uric acid crystals causing the odor until they are completely gone

Substantial evidence indicates that exposure to household air pollution, particularly from indoor sources such as biomass cooking fuel, firewood heating, and candles [16], is also associated with an increased risk of developing COPD [17], especially in low- and middle-income countries [18] where children and women are predominantly exposed [19]

Phagocytosis of particulate air pollutants by human alveolar macrophages stimulates the bone marrow