That’s because disinfectants and other cleaning productsdoactually expire.
(ICYMI, here’s the difference between disinfecting, sanitizing and cleaning.)
It’s a slow, gradual and invisible process.

Amazon
Read on to discover how long you might expect hand sanitizers, disinfectant sprays and bleach solutions to last.
So, How Long Do Disinfectants Last?
(Remember your best bet is good ol' soap and water when they’re available.)
Disinfectant Sprays and Wipes
Expect about a 12-month lifespan from store-bought disinfectants.
This is when the chemical disinfectant may begin to degrade.
Don’t expect to see an official expiration date printed on the package, however.