Ah-ha! You've unlocked the secret...

Thanks a lot @Jeroen van LAB-3 you win our typo treasure hunt trophy   Sorry, there's not really a trophy, but we are really grateful!

Could you let us know where exactly you saw the offending copy - was it in an email or on one of our web pages? would you mind sharing the link (or subject line if it's from an email)? 

Adding our content sheriff @eric.johnson to the topic so he can correct and give the guilty writer a stiff talking to 

Thanks for the sharp eye @Jeroen van LAB-3 !

I think we’ve tracked it down and made the update here.

We can all breathe tranquilly now :)

Our lungs can all be happy now!