Image:
![Bill Van Heyst and postdoc David Wood holding prototypes](https://www.uoguelph.ca/ceps/sites/default/files/field_feature_image/Van%20Heyst%20-%20air%20filter.jpg)
Summary:
Device designed by engineering prof Bill Van Heyst shows promise for reducing smog, pollutants, allergens and airborne chemicals.
Category:
Device designed by engineering prof Bill Van Heyst shows promise for reducing smog, pollutants, allergens and airborne chemicals.