Frequently Asked Questions (FAQs) FAQs for Product: Resmed Filters (#30907) S7 & Autoset Spirit - Pack of 3 1. Do these filters face with the blue side facing outwards or inwards? I removed my filter to wash it, then couldn't remember which way it faced :(? (Posted: 25th Feb, 2011) Question & Answers for Product: Resmed Filters (#30907) S7 & Autoset Spirit - Pack of 3 Q. Do these filters face with the blue side facing outwards or inwards? I removed my filter to wash it, then couldn't remember which way it faced :(? (Posted: 25th Feb, 2011) A. Hard side in Back to Top Submit A New Question Can't Find The Answer You're Looking For? Submit Your Question Below: Related Product:  Resmed Filters (#30907) S7 & Autoset Spirit - Pack of 3 Your Question:  (Please enter One Question Only! You can ask as many questions as you like, but do not combine them into one post!) Your Reply Email Address:  Security Step:  Enter the text to the Left in the space below: [ CLOSE WINDOW ]