Schools Delay Hybrid
An air circulation system at Nina Otero Community School is seen, Monday, Feb. 8, 2021, in Santa Fe, New Mexico. The system was rated “MERV 9,” which is a lower rating than the state’s original standard for coronavirus safety, but the highest the school’s system can handle. The state amended its guidance in October to allow schools to expand in-person learning with the highest-rated filter available to them. (AP Photo/Cedar Attanasio)