![A white door with a ventilation undercut with a matte black handle and a black line in the middle in a modern house with vinyl panels on the floor. Stock Photo A white door with a ventilation undercut with a matte black handle and a black line in the middle in a modern house with vinyl panels on the floor. Stock Photo](https://as1.ftcdn.net/v2/jpg/04/57/42/86/1000_F_457428613_fnieD3yv91VkTWPaRoRMU9vm32wKDKCG.jpg)
A white door with a ventilation undercut with a matte black handle and a black line in the middle in a modern house with vinyl panels on the floor. Stock Photo
![Undercut door intentionally blocked to resist drafts and control odors... | Download Scientific Diagram Undercut door intentionally blocked to resist drafts and control odors... | Download Scientific Diagram](https://www.researchgate.net/publication/305347839/figure/fig3/AS:384250659524611@1468623904980/Undercut-door-intentionally-blocked-to-resist-drafts-and-control-odors-from-hallway-into.png)
Undercut door intentionally blocked to resist drafts and control odors... | Download Scientific Diagram
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Doorfilter Condo Apartment Air filter on X: "#condo door undercuts are essential for air circulation #doorfilter filters that air to provide an extra layer of #airfiltration #Apartments https://t.co/F2hmTgush0" / X
![Fire Door Clearance - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene. Fire Door Clearance - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene.](https://idighardware.com/wp-content/uploads/2009/04/clearance2-1024x629.jpg)
Fire Door Clearance - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene.
![Solution for Oversized Undercuts - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene. Solution for Oversized Undercuts - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene.](https://idighardware.com/wp-content/uploads/2013/03/Zero-339FS.jpg)