This work has value at 2 levels. One is what it reveals about the design of mosques in KSA. The other is as a recommended dataset to be used around the world.
Providing descriptive solutions and considerations from different cases in KSA is an important step. Another step is to provide recommendations to be implemented in mosques in hot-arid regions.
One of the issues that increases the spread of the virus in hot-arid regions is lack of ventilation, in addition to the use of mechanical ventilation. To deal with that, it is highly recommended to consider solutions that combine natural and mechanical ventilation as a hybrid system.