When choosing a floor sanitizer, it's important to consider exactly what it will be used for. You would likely use a different cleaner for everyday jobs than you would for heavy-duty or commercial use. Cleaning up large messes, such as blood or raw food, would also require a specific sort of floor sanitizer. Once you have figured these aspects out, you can also choose cleaners based on how well they clean, fragrance, and ingredients.
For household jobs, it doesn't matter in most cases how heavy-duty your floor sanitizer is. Most household cleaners are designed to kill germs and disinfect at the level most homes would need. This includes killing cold and flu viruses and cleaning dirt, grime, and common allergens. Just make sure that the option you choose is designed to sanitize as well as clean. Cleaners made to cut through grease and dirt are not always made to kill germs. Make sure to also go with a cleaner that is made for the type of flooring you have.
If you have a heavier job, such as cleaning up blood from an injury or raw meat from cooking, you'll need to use a heavy-duty floor sanitizer. Surfaces that are approved can be cleaned using a bleach solution, since this substance is able to kill virtually any virus or bacteria. For surfaces which aren't approved, it's important to read labels carefully to ensure that the cleaner being purchased can handle dirtier jobs than usual. These can be found in most supermarkets, or in home improvement stores.
Commercial settings should be cleaned with an approved industrial solvent. These can be purchased from commercial cleaning supply centers, and they are made to cut through heavier amounts of dirt, germs, and stains. They are also made to sanitize larger areas where diseases can spread. They're also usually sold in larger bottles to accommodate bigger cleaning areas.
Aside from the cleaning power of a floor sanitizer, you should also consider your own personal tastes in terms of fragrance. There are a wide range of scent options to choose from, so you shouldn't have a problem finding something you enjoy. Keep in mind that if you are allergic to pine or similar fragrances, some cleaning agents feature real oil from pine trees as part of their fragrances.
If you're trying to stay away from harsh chemicals, it can be harder to find a good floor sanitizer. There are natural herbs and other non-toxic ingredients with antibacterial and antiviral properties, but you will have to research products more thoroughly to determine which ones would be best for your needs. Read labels carefully, and when in doubt, research ingredients to figure out which are most potent at fighting pathogens without causing harm to humans or pets. Steam cleaners are also options, as these use only high temperature steam to kill bacteria.