I used the low odor intensity dry erase markers for the first time and will have to say the name describes their best features and is well suited. They have no notable odor that I could detect and I am fairly sensitive to chemical odors. The color is intense and does not smear. All of my writing is easy to see. My old markers did not work as well. I wrote over the old writing in one line on my calender and there is a marked difference between the two. I love these markers.