Airtight houses are all about energy efficiency, but what about air freshness? In this fun and quirky experiment, I test how quickly my home's advanced ventilation system clears the air. From fog machines to, well, 'other emissions,' we’ll see if an ultra-sealed house really traps everything—or if smart design wins the day. Sign up For Build Show Live https://www.buildshowlive.com/en/register.html Use Discount Code MATT” for 25% off edu passes, TEN01 for 10% off VIP and GETGOING50 for 50% off Expo. Get your BUILD SHOW Gear Here - https://build-gearstore.com/ Subscribe and follow my Podcast on Apple or Spotify! Apple: https://apple.co/32AOwgU Spotify: https://spoti.fi/3FXNg4X Sign up for our twice-weekly newsletter: https://buildshownetwork.com/newsletter To sponsor a video or advertise with us visit: https://www.buildproductions.com Want to learn more about building? http://thebuildshow.com/ The Build Show on Instagram: https://www.instagram.com/thebuildshow/ Huge thanks to our Show sponsors Builders FirstSource, Polyguard, Huber, Rockwool & Viewrail for helping to make these videos possible! These are all trusted companies that Matt has worked with for years and trusts their products in the homes he builds. We would highly encourage you to check out their websites for more info. https://www.bldr.com/ https://polyguard.com/ http://www.Huberwood.com https://www.Viewrail.com https://www.Rockwool.com