The main risk with these types of disinfecting products is if a vulnerable person, such as someone with asthma or other breathing problems, breathes in the disinfectant while disinfecting. For this reason, we only perform disinfecting services on vacant rooms - you and your staff will have to be gone during the time of the service. Since the disinfectant is not rinsed off but must air dry, no one should enter the area after the service for some period of time - from a couple of hours to four hours. Our technician can advise you specifically on when it will be safe to return. Other than that, the disinfectants we use have low toxicity, and are safe for adults, children, and pets.