Are you wearing a defective mask?
Kyle Gu, Adrian Lee
West Point Grey Academy
Floor Location : J 086 H

Our experiment is about different types of masks and how well they block condensation. When we breathe out, our mouths are warm, and this causes water particles in our mouths to expand, and turn into a gas. When this gas hits a cold surface, like a mirror, the colder temperature on the mirror causes the particles in the gas to shrink, which turns it into water. We hypothesized that if the cloth and disposable masks produced the least amount of condensation, then they are the most effective type of mask to use. To help us answer our guiding question, we tried on different types of masks and then breathed for 15 seconds in front of a mirror. Our dependent variables were the types of masks used, and our independent variable was the time of the condensation lasting on the mirror. Our controlled variables are the temperature, wind, surface area, and air humidity. When we finished collecting our data, we found that cloth and disposable masks had zero seconds of condensation, school masks 42 seconds, and no mask 110 seconds. When we tried this whole experiment on a day with a colder temperature, we found that cloth and disposable masks still had zero seconds, while the other two trials increased in their time. In conclusion, through the different types of masks that we tried, we were able to find out the efficiency of different masks, and compare it to the efficiency of no mask.