I bought a contemporary vacuum...how can I state its lifespan? It's a bissell bag smaller number, and the HUGE dirt cup is...

It's a bissell bag smaller number, and the HUGE dirt cup is ALWAYS FULL of dust and debris once I run it over my carpet. I want to keep it this style.
Answers:    I have a Eureka i.e. very similar within design. I remove the dirt cup and throw the contents out everytime. I also clean, after respectively use, the cup, filters, and adjectives parts that have a direct affect on the upper air flow. The worst thing is to inhibit your airflow which will variety the motor work all the harder. Clean your cleaner and your cleaner will trade name you happy.....joyous as your can be for vacuuming a room.