HOUSTON -- A northeast Houston school should remain open and undergo more renovations despite lingering concerns from parents and the community, according to HISD Superintendent Abelardo Saavedra, KPRC Local 2, Your Education Station, reported Tuesday.

Key Middle School, located at 4000 Kelley St., was closed in September after several staff members and students complained of respiratory problems.

Critics claimed the school was filled with dangerous toxins, but a report by safety experts found that there were no unusual levels of mold inside the building.

The Centers for Disease Control and Prevention inspected the school and said that damp building syndrome might be the problem after finding "isolated" microbial growth.

Saavedra will recommend to the school board on Wednesday that Key stay open and up to $3 million in renovations be expedited to get the building in top condition. The money would come from an $805 million school bond, and pay for new windows throughout the school and a new 315-ton chiller unit for the air conditioning system.

While classes for Key students were held at nearby Fleming Middle School for six months, crews completed $3 million worth of renovations, including new ceiling tile and replacing the old air conditioning system.

Students returned to Key on March 26, after Spring Break.