Can some one explain the difference to me

Ok so awhile back a guy posted a thread about a medala breast pump that he had used, but never posted again. He stated greast suction up to 10mmhg.
I found a website that gives you suction strength for common breast pumps and it states this for the medela pump.

Medela Pump In Style Original
2 phase pumping
100-225 mmHg
http://www.moms … nity.com/chart/
Ok so why would it state such a high range? It seems all pumps liste on the site are around the same range as well. What are the reading when they come to that conclusion?
Thanks in advance

The only thing I can imagine is that the 10mmhg is a typo. It should have been 100mmhg.

10mmhg is such a small vacuum you would barely feel it.

For comparison in units we are used to, 100mmhg is around 4”hg and 200mmhg is about 7.9”hg