I was able to use these to make my own Lysol-type disinfectant! Like many others, I can't find any Lysol - which I like because of the fine mist - so I used these and filled them with 70% alcohol. (I could use a bleach solution as well but would need to use ASAP to keep potency) The caps lock on really well so nothing leaks. The fine mist allows the alcohol to evaporate really quickly when I spray doorknobs, etc. I printed my own labels and taped them on so no one would mistake it for water, vinegar, etc!