Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Would I need to purchase a supply of disposable HEPA filters for this vacuum?
Document: This vacuum has exceeded my expectations. Extremely powerful and maneuvers well. I have several pets and I was amazedhow well it vacuums up the pet hair. I would buy this machine again.
Great little vacuum so far. Seems to have good suction, is easy to pull around. A review in 3-5 years would be much more meaningful since I've only had this vacuum a couple months.
This is a great vacuum. Assembly was simple. It is very quiet and very powerful vacuum. I was impressed by the volume of dust and dog hair that it picked up. Even as the canister filled up, the suction was still very strong. Emptying the canister was easy and pretty tidy.
This seems to be a good machine but wait if you have a problem as I did. Panasonic is no help at all. Referring me to a repair center that could not service it (you pay the shipping) as they were not authorized and  also when speaking to the service center tech  I was told that parts do not come from Panasonic but are outsourced. So good buy warranty, service, and vacuum cleaner. As we all know any product is only as good as the service so be careful.
Just received the vacuum last week. We were a little skeptical at first. We have only had a upright vacuums. All we can say is awesome. Quieter than we expected-able to hold a conversation normally without yelling.. More powerful than we expected-we can believe how much crap got picked up left over from the other vacuum. And also lighter than we expected. I've only had the chance to use it once, because the wife steals it from me every time I try to use it.
She loves this thing so much, I see her vacuuming everyday. Crazy, because that never happened before. She tells me she loves it for being so practical. Able to move from bare floor to carpet, simply. Easily maneuverable, and able to get into places our upright has never done so. She tells me she also likes the ability that the vacuum can reach under the bed without scratching of all the sides. What can we say, Panasonic, you made a great product here.
After reading a few dozen reviews of several vacuums, almost went with a Panasonic bagged model. I've had a had a Bissell (upright) bagless model, so decided to stick with what I know. Very easy to remove dustbin and empty over the trash. I use this on mostly hardwood floors, and flat weave and low pile carpets. I was amazed at the amount of dirt and dust bunnies this got up.
Love how easy it is to detach the telescoping arm and reach corners I've never been able to. I've never had a canister style before, and will have to get used to dragging it around, but I'm so pleased with the performance of this vacuum it won't take long.
We've gone through two Hoover Wind Tunnel canister vacuums and were looking for something a bit more durable in a bagless vac. This vacuum rated very high, handled bare wood floors well, and had the features we were looking for. Overall we're very pleased. It cleans very well, empties easily, and handles well.
So just got a chance to try out the vacuum. We had a Kirby and that lasted until last week. We thought the Kirby was good but it pales in comparison to this guy. We have seven cats and this vacuum did the best job we've ever seen. Plus it's much quieter than the Kirby AND no more bags to buy.Of course, things could change but, this Panasonic is a 5 star so far.
Answer: Yes. There is a washable primary filter but the HEPA exhaust filter must be replaced.