XO XOI21SMUA Specification Sheet

K I T C H E N   V E N T I L A T I O N   S Y S T E M S

XOI21SMUA 

make-up air compliant series

The XOI insert is an integrated blower which allows you to match your custom hood to your 

kitchen. T

Italy for the 

At XO

www.xoappliance.com

Insert

What does Make-Up Air Compliant mean?

For the last several years, codes and standards 

required Make-Up air for domestic range hoods

with exhaust rates exceeding a certain limit. 

The International Residential Code Section 

M1503.4 and the International Mechanical Code 

Section 505.2 require Make-Up air for all domestic 

range hoods in excess of 400 cfm. 

State, county and local codes may be more 

restrictive.   Always check with your jurisdiction for 

specific Make-Up air requirements in your area.