Lake County, Montana

Environmental Health
Environmental Health
Lake County Environmental Health recommends the following link from the CDC’s website, which outlines guidance information for cleaning and disinfecting facilities when an employee has been diagnosed with COVID-19: “Cleaning and Disinfecting your Facility: Everyday Steps, Steps when Someone is Sick, and Considerations for Employers”

https://www.cdc.gov/coronavirus/2019-ncov/community/disinfecting-building-facility.html

Cleaning and disinfecting your building or facility if someone is sick:

          • Close off areas used by the person who is sick.
          • Companies do not necessarily need to close operations, if they can close off affected areas.
          • Open outside doors and windows to increase air circulation in the area.
          • Wait 24 hours before you clean or disinfect. If 24 hours is not feasible, wait as long as possible.
          • Clean and disinfect all areas used by the person who is sick, such as offices, bathrooms, common areas, shared electronic equipment like tablets, touch screens, keyboards, remote controls, and ATM machines.
          • Vacuum the space if needed. Use vacuum equipped with high-efficiency particular air (HEPA) filter, if available.
          • Do not vacuum a room or space that has people in it. Wait until the room or space is empty to vacuum, such as at night, for common spaces, or during the day for private rooms.
          • Consider temporarily turning off room fans and the central HVAC system that services the room or space, so that particles that escape from vacuuming will not circulate throughout the facility.
          • Once area has been appropriately disinfected, it can be opened for use.
          • Workers without close contact with the person who is sick can return to work immediately after disinfection.
          • If more than 7 days since the person who is sick visited or used the facility, additional cleaning and disinfection is not necessary.
          • Continue routing cleaning and disinfection. This includes everyday practices that businesses and communities normally use to maintain a healthy environment.

Thank you for your attention. Please let this department know if you have questions.


Environmental Health is the aspect of public health that addresses the interaction between human health and the environment.
Our health is affected by the quality of air, land, food and water resources. Maintaining and improving public health by managing those environmental factors that affect health is the goal of this department.

Program Director
Diana Luke
Lake County Courthouse Room 315

106 4th Ave E Polson, MT. 59860
(406) 883-7236
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