3M employees working as an O2 Engineer in US have attributed a compensation and benefits rating of 4.7 out of 5 stars, based on 9 ratings. This is 4% higher than the average of O2 Engineer professionals at 3M worldwide.
The salary trajectory of a an O2 Engineer ranges between locations and employers. The salary starts at $70,047 per year (estimate) and goes up to $375,844 per year (estimate) for the highest level of seniority.
The estimated average salary for a O2 Engineer at 3M is $110,571 per year or $53 per hour, but some professionals have reported earning up to roughly $194,575 per year (90th percentile). The typical pay range is between $82,928 (25th percentile) and $149,600 (75th percentile) annually. This is based on 31 salaries submitted by 3M O2 Engineer professionals on Glassdoor, as of Jun 2026.
O2 Engineer professionals typically earn between $40 and $72 per hour.
O2 Engineer professionals typically earn between $6,911 and $12,467 monthly.