Should Windows Be Open or Close during COVID-19 During Quarantine? Dr. Tom O'bryan

I discuss with Dr. Tom O'Bryan whether windows should be open or closed during quarantine.
- Dr. Cheng Ruan
Facebook : / healthydoc
Twitter: / theruanway
Pinterest : / theruanway
Instagram : / dr.chengruan
Website :www.ruanmd.com/
RuansHouse.com (for products and books Dr. Ruan Loves)
Subscribe to my UA-cam Channel: / @ruanmd
Disclaimer: the contents of this video is educational and should not be considered medical advice. Always consult with your physician prior to making any decisions.

[@harveywilliamson1555]

INSPIRING 💪😍!!! Find out the secret - P-R-O-M-O-S-M!!