Head Custodian at Billings Senior High School Rod Grotbo said cleaning is done in four steps. The first step involves using a cleaner to get the grime off, then spraying a disinfecting spray. After that, crews use another cleaner to wipe the residue off. Finally, cleaning crews use the new EvaClean Disinfecting Machines.

Reiter said the EvaClean Machines use technology to wrap surfaces with a disinfecting solution.

Reiter said the district currently has seven EvaClean Machines. He said the district ordered 36 more machines three weeks ago. He said they were supposed to arrive within a week, but have been delayed due to the coronavirus.