The filter I received wasn't a genuine Eureka filter
938164
The filter I received wasn't a genuine Eureka filter, and may not have been a genuine HEPA filter.  The vents were crooked and crushed.
2138757
I purchased this as a spare for the system I already purchased in the past. Shipping was quick and on time. The filter however looks somewhat malformed. Hopefully if I ever need it that won't be a problem but I am highly suspicious of the quality
2547034
Not accurate as the filters are not as pictured and look generic so I am returning.
4293663
Somehow I LOST the original filter to my Hoover Linx so I ordered these. When they arrived, (which was quick), I immediately installed one & noticed it seemed slightly small for the space. Also, in operation I THOUGHT is was restricting the air flow, which would reduce its' suction. I was ready to give a 1 star review & expose this as a cheap imitation. BUT. I decided to hold off a little.
 Instead, I found the Hoover website & ordered a "Genuine" filter. A single filter cost more than this 3-Pack, with shipping, etc. But at least I was sure it would work right.
 When it arrived & I compared the genuine with the Fette filters. THEY WERE EXACTLY THE SAME in every way. So now I probably have a lifetime supply of filters for my Hoover Linx, but at least I know they're OK.
2326721
Ordered a new filter and received an obvious return with torn open packaging and dusty finger prints on filter casing. REALLY needed the filter so I shook off the little bit of gross factor and talked myself into just using it anyway. Upon installation I discovered why it was returned the first time. The filter is not the correct size to activate the safety cut off switch so my GermGuardian would not run. Reinstalled the old filter and the GermGuardian took off running. I will not buy this product again but other than improperly sorting out returned items from the supply stream, the supplier was great. Quick shipping and easy return. I have since purchased an OEM filter to ensure a correct fit and my HEPA is back online.
2328462
this is NOT a genuine aprilaire filter- dislike very much- I guess you get what you pay for- we are unhappy with this purchase
140467
All parts were cheap replacements, not the real eureka parts (which I figured from the picture, but the seller notes some part numbers). The belt may be OEM, but that's it. The HEPA is a knockoff (although seems just fine) and the bags are of course bulk (which is fine with me). The #70082 part is a really cheap knockoff and I wouldn't expect it to filter much from the motor.

Overall, not a very good value.
4390551
TLDR This is a genuine Eureka HF-2 HEPA filter and the Arm and Hammer in it leaves the house smelling fresh too!  Past reviewers may have purchased this when it wasn't sold by Amazon ... maybe Amazon listened to you.  Amazon.com now sells it and it's genuine Eureka.  The seller may change maybe when Amazon.com sells out.

Buying genuine replacement bags and filters are important especially if you own a HEPA vacuum. Below I put links to the other genuine Eureka stuff I bought on Amazon.com.  I own a Eureka The Boss SmartVac and it's been performing flawlessly for years.  I has a true HEPA filter (High Efficiency Particulate Air) that captures more dust, mold, and other fine particles not caught by the vacuum bag.

If you have a Eureka 4870 The Boss SmartVac like me (it was a Consumer Reports #1 rank when I bought it years ago), here are the Amazon links to the other genuine replacement parts that I also bought:

Eureka RR Style Vacuum Bags with Arm and Hammer
&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Eureka-RR-Style-Synthetic-Bag/dp/B001A0IE3O/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Eureka RR Style Synthetic Bag</a>
Eureka R Style Belt (I've never replaced mine but bought it just in case)
&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Eureka-R-Style-Belts/dp/B0002U356Y/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Eureka R Style Belts</a>
Eureka 4870 Attachment Hose
&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Eureka-The-Boss-Ultra-Smart-Vac-Model-4870-Attachment-Hose-Eureka-Part-61247-1/dp/B0034IV8MO/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Eureka The Boss Ultra Smart Vac Model 4870 Attachment Hose, Eureka Part 61247-1</a>

P.S. I can't figure out why people buy fancy ball rolling vacuums that supposedly suck better (lol)... form over function?  A vacuum that sucks harder is good, but more important is a vacuum that sucks hard AND keeps the dust inside with a true HEPA filter.  Love my Eureka :-)
2269592
Product received was not the name brand prefilter I ordered. I received an after market brand.
1816424
The material that shipped with my order was not the same as the filter that origally came with the unit when I purchased it. The original filter was more dense Than the one that came shipped to me. The replacement filter was much more course and does not filter as well. The original filter pad had a micro filter built onto the course filter.
1994045
We've had a similar experience with finding the original type filter, they show the correct picture but send you a cheap aftermarket filter.  If you're also looking for the correct filter, go to iallergy.com - they have the genuine filters in stock.
1944797
I could not use the actual filter. It said it would fit my vacuum but it did not. I used the foam in my old filter. Disappointed
4697571
We have bought this filter previously from the same supplier and had no problem. This time, the filter arrived in a very banged up box that had been taped closed on all sides. The filter appears to be fine, so we will not be returning it because of a very banged up box, but it's not the impression that I would want to pass on to customer if I owned a business.
2393870
The product title plainly states Briggs and Stratton and a picture is being used of a B&S filter.  However, the filter I received was an Oregon brand aftermarket filter, not B&S.  It's shaped different and It didn't install as easily as the original filter.  I went ahead and used it, because I needed a filter quickly.  Had I known about this ahead of time, I would have bought the B&S filter at Wally World.
3347012
The filter I received does not fit the air purifier I bought ?? How do I return it + get correct size for my machine ??
3470327
I bought this filter from B&M Housewares on Amazon.  I received a genuine Dirt Devil filter, in the original manufacturer's box.  However, it doesn't have the green and white sticker on top like the picture shows.  It fits snugly into my Dirt Devil Featherlite bagless upright.  By the way, it's a HEPA filter.  It was packaged well and arrived in good shape.
3346436
As many others have reported, it seems that the item I received is not brand new.  The filter was sitting loosely in a case that didn't fit it and upon close inspection it was coated in dust and tiny scratches/smears.  There seems to be something very fishy going on here and I am starting to trust Amazon less and less these days.  I called B+W directly and they agreed that something seems wrong.  They stated that the filter should come in a tight fitting case (so it doesn't move around when shaken) and shouldn't have dust on it straight out of the box.  I am sick of dealing with Amazons horrid customer service, so I am currently trying to exchange my filter for a new one directly through B+W.