Celebrity canisters are great machines.
I presently own two but had a three up until recently. I only own the power nozzle models as brush rolls are my favorite part of the machines.
Here are some of my advice tips:
Stick to genuine Hoover H bags. The Celebrity uses a 13 Quart horseshoe shaped bag and that bag with vast surface area allows it to maintain airflow better than just about any other vacuum..upright or canister.
What you can do is use a HEPA premotor filter. On the QS series series units, the motor pulls air from sides of the housing. You can create a HEPA bag material filter to fit and put a washable foam style filter on top. I use HVAC vent register filter, cut and stapled to fit You can get packs of HVAC vent register filters from any hardware store. A 10 pack is about $4 and they are cut to fit.
Older Power nozzle-- the older/ original power nozzle used Hoover Convertible brush strips and are easy to find. Brush strips for the Quadraflex models have been NLA for many years sadly.
Muffler Foam: I used 3/4" foam cut to the shape of a large donut to fit base. Get about 1 yard of foam from Joanne Fabric and cut. You won't suffocate the machine with breathable foam.
Motor Service: Celebrity motors are serviceable from the right shop. You'd need to inquire if that shop services motors. An Electric Motor service might be best. If you ever go to upstate NY, you can look up Chris at C.S. Vacuums in Oneida, NY. He can fully rebuild that motor for you if needed.
Cord Winders: Any winder can go bad but the Celebrity ones are very very durable. Many older ones are tug and release which works great. The ones with peddles can have an issue with the brake in that the pad wears out You can actually fix that with a piece of vacuum belt glued onto the brake arm to replace the old pad Kirby or Royal knurled belts work real good for that with their extra traction.
Attachments and Wands: With exception of the curved upper wand, all other tools are compatible with Hoover canisters up to mid 2000s. Some may look different but they will fit. When Hoover introduced the Hoover Dimension series canisters they came out with tools that still used the pin lock but made them more rectangular. They also adjusted the angle on some like the upholstery nozzle as the new hose style eliminated the curved wand need, the bend for that angle was built into the hose The last production of Hoover replacement parts actually had the newer style hose end with standard Celebrity connector to the suction unit.
Any Hoover tool with raised pin locking system will fit though.
Here are some photos of mine which may help.
