I ordered the Compact/TriStar HEPA bags & will NEVER go back to paper bags anymore. The paper bags (even 'micro-lined' ones too, esp when the 'micro-lining' rips) leak TOO MUCH FINE DUST, which ends inside the cloth bag & HEPA motor filter
I also noticed the cyclonic action lasts MUCH LONGER & airflow/suction STAYS CONSTANT LONGER when I use HEPA bags; & the Compact picks up MORE DEEP DOWN DIRT & FINE DUST with the HEPA bags than with paper bags. After replacing the Compact's 'full' paper bag (it was ½ way full but smelled dusty) with a new HEPA bag, I managed to pick up more dirt from bedroom & living room carpets (the carpet was vacuumed with the Compact when it still had a 'micro-lined' paper bag) So I pulled up a corner of the bedroom carpet & the subfloor feels CLEAN & free of dust