Is your disinfectant spray making your lungs toxic?

Your disinfectant spray is 100 times more toxic to your lungs when you breathe it in than if you were to accidentally swallow it. That is the reality of using products containing quaternary ammonium compounds (QACs) like benzalkonium chloride and didecyl dimethylammonium chloride.

A 2026 study published in Environmental Science & Technology found that these chemicals, commonly used in household cleaners, cause significant lung injury and lethality when inhaled. Researchers discovered that inhaling these QACs creates blood concentrations that overlap with levels already found in humans, directly linking them to an increased risk for asthma and COPD.

The study showed that DDAC is twice as injurious to the lungs as BAC. If you are cleaning your kitchen counters or nursery surfaces with these sprays, you are essentially aerosolizing lung-damaging chemicals into the air you and your family breathe.

Stop relying on conventional cleaners that rely on these harsh synthetic compounds. Switch to non-toxic home alternatives that clean effectively without compromising your respiratory health. Check your labels for QACs today and ditch the spray that is quietly damaging your lungs.

Source: Adcock L, Montgomery CB, Barkhordari S, Datta S, Van Winkle L (2026). Environ Sci Technol.