Central Dauphin East High School will open Wednesday.
District spokeswoman Shannon Leib said air-quality test results came back “all clear.”
Classes at CD East were scheduled to begin Monday, but the district pushed back the start date Sunday after mold was found in some basement classrooms.
Leib said in addition to testing the previously affected areas of the building, the administration took the extra step of testing the air quality in other sections of the high school and every test came back normal.