This reverts commit c12bbd0d4d715466b5898f40ea2350b835b1e63b, reversing changes made to 58b07a01eecd4dc9c93f99cdfeb71622b20cae6c.
@@ -17,7 +17,7 @@ Write start: 0,0,0x2F
R: ID*=,0,0x65
-R: CO2 level*2[3]=i:4,,ROM2
+R: CO2 level*2[3]=i:4,,ROM2$
W: CO2 level*2=,i:4,WROM2
R: Fan speeds=25