In this episode of The Voice Boxes, Jennifer Kellams and Nettie Rose discuss the various environmental factors that can impact vocal health, including indoor and outdoor pollutants, allergens, and the importance of hydration. They explore how conditions like dry air and allergens can lead to throat irritation and vocal strain, and share practical tips for managing these issues to maintain vocal health. The conversation emphasizes the significance of creating a healthy environment for the voice, including the use of air filters, humidifiers, and mindful cleaning practices.