Most air fresheners contain synthetic chemicals that don't remove odors; they simply mask them while releasing compounds linked to asthma, headaches, skin irritation, and hormone disruption. A comprehensive study of home chemical exposures found that nearly every household surveyed regularly used some form of air freshener, yet few people understand the health risks hidden inside these common products.

What Chemicals Are Actually in Your Air Freshener?

When you spray an air freshener or plug in a scented device, you're releasing chemicals into the air that settle into household dust and can be absorbed through your skin. Many of these chemicals have not been thoroughly tested for safety, and some are known to cause serious health problems.

One particularly concerning chemical is phthalates (pronounced "thal-ates"), which are used in air fresheners to hold fragrance and color. Research has linked phthalates to reproductive harm, especially in developing boys, and they may affect fertility in adults. Some phthalates are also suspected of increasing cancer risk and contributing to allergies and asthma.

The problem is compounded by labeling practices. Even air fresheners marketed as having "natural" scents, like flowers or fruit, may be created entirely with synthetic chemicals. Manufacturers are not required to list fragrance ingredients on labels, so consumers have no way of knowing exactly what they're breathing in.

Who Is Most at Risk from Air Freshener Chemicals?

While everyone is exposed to air freshener chemicals, certain groups face greater health risks. Children and people with asthma or allergies are particularly vulnerable, especially with regular or long-term exposure. The chemicals in air fresheners have been linked to a range of health concerns that disproportionately affect these populations.

Research has connected air freshener chemicals to the following health issues:

• Respiratory problems: Asthma attacks and other breathing difficulties triggered by inhaling fragrance chemicals
• Neurological effects: Headaches and migraines that can be triggered or worsened by exposure to synthetic fragrances
• Skin reactions: Dermatitis and other forms of skin irritation from chemicals settling on the skin
• Hormone disruption: Interference with the body's endocrine system, which controls growth and development
• Developmental harm: Impaired development of children's bodies, particularly reproductive system development in boys

According to researchers at the University of Rochester who conducted the ROC HOME study on home-based chemical exposures, the widespread use of air fresheners combined with limited ingredient transparency creates a significant public health concern.

How to Eliminate Odors Without Harmful Chemicals

The key insight from environmental health researchers is that air fresheners don't actually solve the underlying problem causing bad smells. They simply mask odors while the source remains. For example, using air fresheners to hide a musty smell may put it out of mind, but mold will continue to spread and grow.

Instead of relying on chemical air fresheners, experts recommend addressing odor sources directly and using safer alternatives:

• Remove odor sources: Take the trash out regularly, clean pet areas and bathrooms frequently with unscented products, and use fans and windows to circulate fresh air throughout your home
• Control moisture: Use dehumidifiers or exhaust fans to prevent mold and mildew, which are common sources of musty odors that people try to mask with air fresheners
• Baking soda: Sprinkle baking soda on carpets, furniture, in trash cans, and in refrigerators to neutralize odors naturally without releasing harmful chemicals
• Fresh flowers: Display fresh flowers to add a natural floral scent without synthetic fragrance chemicals
• Dried flowers and spices: Create potpourri with dried flowers or spices like cinnamon and vanilla for longer-lasting natural scents
• Simmer pots: Heat natural ingredients like cinnamon, vanilla, lemon, or apple in simmering water on the stove for a chemical-free fragrance option (watch carefully to prevent the water from boiling away)
• Open windows: When the air feels or smells stale, bring in fresh outdoor air by opening windows instead of reaching for an air freshener

"Research has linked chemicals used in air fresheners to a range of health concerns, including respiratory issues like asthma attacks, headaches and migraines, skin irritation, hormone disruption and impacts on fertility, and impaired development of children's bodies," explained Becca Lauzon, Research Assistant Professor of Environmental Medicine at the University of Rochester.

Becca Lauzon, Research Assistant Professor of Environmental Medicine, University of Rochester

Making the Transition Away from Chemical Air Fresheners

Changing your home's scent profile takes time and adjustment. You may need to shift your expectations about what a "clean" home should smell like. The goal isn't to achieve a heavily perfumed environment; it's to maintain a fresh, odor-free space without exposing your family to harmful chemicals.

Environmental health experts acknowledge that breaking the air freshener habit isn't always easy. Small changes, such as reducing odors at their source, cutting back on air freshener use, or trying natural alternatives, can significantly reduce your chemical exposure while still keeping your home smelling pleasant. The benefit is substantial: you'll be protecting your respiratory health, your children's development, and your family's long-term wellness.