How much air does my Backyard Bunker need?

THE Backyard Bunker is BACK! Click the links below and use my code 25EFSMJERRY for an extra 5% off @EcoFlowTech WAVE 3 and GLACIER Classic. (The code is valid until May 25 and cannot be combined with other coupons). Get a free 110W solar panel with your WAVE 3 order（From April 25 to May 2) and get a free power hat with your GLACIER Classic order(From April 25 to May 25). EcoFlow WAVE 3: https://bit.ly/3GcjnUw EcoFlow GLACIER Classic: https://bit.ly/4lDEsaD WAVE 3 on Amazon: https://amzn.to/3Ghlmqu Huge thanks to Ecoflow for sponsoring this video and turning our backyard bunker into a cozy livable space. Today we are going to install the air conditioning system into the bunker. While we test out how much airflow we need to maintain a healthy living atmosphere underground. Watch all the bunker videos in order HERE: https://www.youtube.com/watch?v=ujoAWANEUsw&list=PL0vZL9uwyfOE6Of8qi5dtIFgdSt1hlOZm The CO2 Air Valent Sensor can be found here: https://amzn.to/44jmvYJ