Ventilation in Schools

Thames Valley District School Board Ventilation Profile

School boards are optimizing air quality in schools through improved ventilation and filtration.
Implemented measures are dependent on the type of ventilation and feasibility within the context of school facilities and related building systems.

Measures to Optimize Ventilation in Schools

Ventilation: Increasing the flow of outdoor/fresh air for diluting the concentration of any infectious particles.
Filtration: Involves the use of different types of fibrous media designed to remove particles from the airstream.

School Board Ventilation Strategy

  • Optimizing ventilation systems to increase the flow of outdoor/fresh air (This includes extending operating hours of systems)
  • Using Ministry-recommended MERV 13 filters in the majority of Thames Valley Schools
  • Deployment of portable HEPA (High Efficiency Particulate Air) Filters to augment ventilation strategies at: Kindergarten classrooms; classrooms with students with complex medical needs; learning environments with passive ventilation or filtration lower than MERV 13.
  • HEPA filters have also been deployed, but not operational, to all remaining learning spaces to respond to changing circumstances.
  • Continued capital investment to upgrade ventilation systems

School Board Wide Investments 



Ventilation Funding* $80.6M

Planned Ventilation Projects $21.3M


Ventilation projects completed


Ventilation projects in progress / planned


Schools receiving an investment, which is 100% of total schools in the board.


Schools to receive an investment, which is 100% of total schools in the board.

Note: *This includes spending from dedicated ventilation programs, federal-provincial funding, provincial renewal funding and supplemental funding from other board sources.

Standalone HEPA filter units in use 657

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