Hello,

Well you bought a really great vacuum cleaner. The Filter Queen's are extremely durable and very well made vacuums. They sell brand new for over $2500, so picking one up at a yard sale was a great find by you.

There are several different filters on this model that need to be replaced. Here's a link to a 6 month supply kit that we sell, which contains all the filters needed for a 6 month period:
Filter Queen MediPure Filters 6 month supply

The only other part that you should be replaced on a regular basis is the belt (only if the vacuum has a motorized power nozzle for cleaning carpets). The belt should be changed every 6 months or so. Even if it doesn't break, these belts will stretch out and not work as well as a new belt would. Here's a link to the belt that will fit your Filter Queen Majestic:
Filter Queen Power Nozzle Belt to Fit All Majestic models using a flat belt

Here's a link to the owner’s manual for a newer Majestic model. This is the only one that is available online. Even though it's a newer model, the maintenance and care will be exactly the same for your model.
Filter Queen Majestic Owner’s Manual

I really hope this was the information that you needed. If you have any follow up questions, please don't hesitate to ask them by using the comment box here on the Fixya repair page.

If this did help you, please be so kind and rate my repair helpful, or leave some feedback for me. This is greatly appreciated.

Thanks,

Chris Jones
GoVacuum.com