It’s easy to assume that if a product is on the shelf, it’s been tested for safety and passed the test. Unfortunately, that’s not always a safe assumption.

In a recent study of air fresheners, NRDC scientists found pthalates, chemicals that can exacerbate respiratory issues and disrupt normal reproductive function, in 12 out of the 14 products tested.

NRDC tested 14 different brands of common household air fresheners and found that 12 contained the hormone-disrupting chemicals known as phthalates. Only two, Febreze Air Effects and Renuzit Subtle Effects, contained no detectable levels of phthalates. The products that tested positive included ones marketed as “all-natural” and “unscented.” None had phthalates in the list of ingredients or anywhere else on the label. The three with the highest level of phthalates were Walgreens Air Freshener, Walgreens Scented Bouquet, and Ozium Glycolized Air Sanitizer.

While consumers should be concerned about the chemicals, NRDC stressed that there is no cause for panic. The chemicals pose their greatest risk over long term repeated exposure.

Unfortunately, most air fresheners are used repeatedly, over a long period of time.

If your house is smelling stale or even downright stinky, the safest fix is to open a window and let some fresh air in. Hang pillows, rugs, and linens outside periodically. Other solutions include the stainless steel Smell Killer, baking soda or activated charcoal, cotton balls soaked in essential oils, or even mulling some cinnamon sticks on the stove top (add a few pieces of crystallized ginger and you’ll have a yummy hot drink too).

Source, Source