**Contents**


#### **Lamberto Tronchin, Angelo Farina, Antonella Bevilacqua, Francesca Merli and Pietro Fiumana**

Comparison Failure and Successful Methodologies for Diffusion Measurements Undertaken inside Two Different Testing Rooms Reprinted from: *Applsci* **2021**, *11*, 10523, doi:10.3390/app112210523 ................. **173**

#### **Hasina Begum and Kirill V. Horoshenkov**

