How does the suction/airflow compare
In regards to suction/airflow on Lux vacuums: Most two stage lux motors pull around 80 inches of lift. Stronger ones upto 86 or so, the weaker ones down to 75. The current motors (single stage) pull 80-84. Now, in regards to airflow, on the baird meter, without an exhaust filter, the non renaissance/epic 8000/guardian pull about 6-6.5. With an exhaust filter installed, the rating is reduced by about half a point. The guardian style pulls 3.5 with the hepa filter, without it pulls around 4.5. Suction ratings measured at the canister, airflow measured at the end of the hose. The only explanation I can come up with for the lack of airflow is when you look into the bag chamber on the guardian/8000 series, the lines/ridges on the sides and bottom are not as deep/pronounced as in the other canisters, consequently the bag has more of a tendency to stick to the wall??? I wonder if any others have tested to see the difference?? Needless to say, I was quite shocked and rather appalled, considering the one for the highest price has the poorest performance.