Despite virus spike, Warren County schools recommend â not require â mask-wearing this year Students at Mason City Schools, Lebanon City Schools and Springboro Schools can all return to class unmasked, according to the districtsâ official policies. and last updated 2021-07-29 19:00:33-04 So does the Ohio Department of Health. So does the Warren County Health Department, which released a list of COVID-19 safety recommendations for its local school districts on Tuesday. But expertsâ recommendations are only that: Recommendations. Students at Mason City Schools, Lebanon City Schools and Springboro Schools can all return to class unmasked, according to the districtsâ official policies.