He asserts that household activities and materials contribute to poor indoor air quality, often making it worse than the air outside.

“The big problems with homes is they're built very cheaply. They're built very quickly. So, they're airtight and they're trapped, which means they trap all all of the pollen and the mold and and everything that comes from outside to inside gets trapped inside.”

Synthetic fragrances are hazardous to human health in a way similar to secondhand smoke.

“I am screaming from my the rooftops that synthetic fragrances are the new secondhand smoke.”