It has been almost two years since indoor air quality came to the fore due to Covid-19. The performance of indoor air purifiers is undeniable. However, where you place it in the room is not unimportant.

In the classroom, we accepted that our teacher was Covid-positive and examined what we should do to prevent it from infecting students.

We evaluate the placement angle of the shading devices for the heating and cooling load performance.

Air flows should be examined in order to reduce the energy consumption of cooling systems at the point of sustainability in datacenters.