When applied according to the manufacturer’s label, EPA-approved disinfectants can be effective for use against COVID-19. Follow the instructions on the label for all cleaning and disinfection products for achieving the proper concentration, dilution, application method, contact time, and any other special considerations when applying.
Instructions for cleaning and disinfecting a laboratory work area should be included in each laboratory standard operating procedure (SOP). The SOP should available to staff and must include what PPE to wear, how to clean surfaces, what disinfectant to use, and how to dispose of cleaning materials. In specific instances, personnel with specialized training and equipment may be required to apply certain disinfectants such as fumigants or fogs.
Disinfectants will have a contact time that is needed in order for them to work appropriately. Contact time is the amount of time needed for a disinfectant to be applied in order for it to be effective. Contact time is achieved by letting the disinfectant sit on the contaminated surface long enough to kill the target microorganisms.
Considerations should be made for the surface type to be disinfected as this may affect disinfectant efficacy. Soft and porous materials are generally harder to disinfect than hard and non-porous surfaces. The EPA lists a limited number of products approved for disinfection for use on soft and porous materials. Soft and porous materials that are not frequently touched should only be cleaned or laundered using the warmest appropriate water setting. Disinfectants are for use on surfaces and objects, not humans.
