Subject
2 free books about ventilation, free to read online. Chapter 1 of any book is free, no account needed.
Hand-book of Sanitary Information for Householders Containing facts and suggestions about ventilation, drainage, care of contageous diseases, disinfection, food, and water. With appendices on disinfectants and plumbers' materials.
Roger Sherman Tracy
Lectures on Ventilation Being a Course Delivered in the Franklin Institute of Philadelphia
Lewis W. Leeds