This question is designed for the interviewer to find out if you have researched ResMed before your interview and also to see if your customer service philosophy matches their company values.
Be sure to research the brands that ResMed works with, or represents. Of those brands, discuss with the interviewer the ones with which you are most familiar. If something about them stood out to you during your research, be sure to mention this.
Next, assure the interviewer that you are capable of upholding their strong reputation through your morale and customer service expertise.