Bleach spray for use in decontaminating surfaces one should combine equal parts of bleach and water?

The statement is incorrect.

It is not advisable to mix bleach with water in equal parts for surface decontamination.

It's crucial to follow the recommended concentration of bleach as per guidelines or consult reliable sources to ensure its efficacy and safety. Mixing equal parts of bleach may compromise effectiveness and could potentially result in improper disinfection and pose various risks.