Authoritative scientific research confirms that qualified air fresheners do not directly cause cancer when used properly. The widespread online claim that "all air fresheners cause cancer" is an one-sided myth lacking sufficient clinical evidence.
While some inferior products may contain excessive levels of potentially harmful ingredients (e.g., volatile organic compounds, formaldehyde), long-term improper use in enclosed spaces may pose health risks—but this is fundamentally different from "directly causing cancer." Safety judgments should be based on product compliance and proper usage, rather than blind belief in absolute, unsubstantiated rumors.
Inferior or non-standard air fresheners may contain various ingredients that pose potential risks to humans and pets. Long-term exposure to these substances can adversely affect health, requiring close attention:
Formaldehyde & benzene derivatives: Classified as suspected carcinogens by health authorities. Prolonged inhalation in enclosed environments can irritate the respiratory tract and mucous membranes, causing throat discomfort, dizziness, and other symptoms.
Volatile Organic Compounds (VOCs): High concentrations can exacerbate indoor air pollution, contributing to respiratory issues and long-term health risks.
Synthetic fragrances & phenolic compounds: These ingredients may trigger allergic reactions in humans. For cats—who have weak liver metabolic function—they also impose additional physiological burdens, presenting potential health hazards.
Long-term, excessive use of air fresheners in enclosed spaces can lead to the continuous accumulation of harmful substances indoors, easily causing respiratory discomfort such as dry/itchy throat, coughing, and sneezing.Such irritant reactions tend to be more severe in sensitive populations, such as children, the elderly, and pets.
Prolonged improper use may also worsen symptoms like dizziness, headaches, and nausea. Certain ingredients can continuously irritate the skin and eye mucous membranes, triggering allergic responses. For cats with limited metabolic capacity, long-term exposure increases their physiological burden and disrupts normal bodily functions—highlighting the importance of standardized, moderate use.
There are significant safety disparities between qualified, standard-compliant air fresheners and inferior products:
Qualified products: Adhere to national production standards, use approved raw materials, feature clear ingredient labeling, and pass third-party safety testing to ensure harmful substances are within safe limits.
Inferior products: Mostly produced by unqualified workshops using cheap industrial raw materials. They often have vague ingredient lists, lack formal testing, and are prone to excessive harmful substances. While they temporarily mask odors, long-term use can irritate human respiratory tracts and skin, and pose serious health risks to cats and other pets.
Choose qualified products from regular channels (e.g., official stores, authorized retailers).
Check for a complete ingredient list and third-party safety test reports.
Avoid products containing high-concentration fragrances, formaldehyde, phenols, or other harmful ingredients.
Prioritize products labeled "low-VOC" and "pet-friendly."
Maintain consistent room ventilation during and after use.
Control dosage and frequency: Avoid heavy spraying in enclosed spaces for extended periods, and do not mix multiple deodorant products.
Place air fresheners away from areas where children and pets frequently move or rest.
Immediately discontinue use if symptoms such as dizziness, respiratory discomfort (in humans) or abnormal reactions (in pets) occur. Open windows for thorough ventilation and switch to safer alternatives.