Question 1

Will these KF170 filters fit my Kenmore 850e series PM1005 air purifier without any modification?**

Accepted Answer

Most users confirm they fit the Kenmore 850e series and PM1005 models, but a few have noted the fit is slightly snugger than the original filters. If your unit is an older model or has a slightly warped filter frame, you may need to gently press them in place. We recommend measuring your current filter slot (roughly 10.5" x 8.5" x 1.5") and checking your exact purifier model number before purchase. As one Reddit user put it, "They fit, but you might need to rock them in a bit—nothing excessive."

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Question 2

How often should I replace these filters, and do they really last as long as the OEM version?**

Accepted Answer

While the manufacturer suggests replacement every 6–8 months, many buyers report noticeable performance drop by month 3–4, especially if you run the purifier continuously. The activated carbon layer can saturate faster than the official Kenmore filter. For best results, plan to swap them every 4–6 months under normal use. If you have pets or smoke indoors, expect even shorter life. Think of them as a cost-effective option that trades some longevity for a lower upfront price.

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Question 3

What's the return policy if the filter arrives damaged or doesn't perform as expected?**

Accepted Answer

We offer a 30-day return window for defective or damaged items, but please check the specific seller's policy before ordering—some third-party vendors have stricter conditions. A few customers on TikTok shared frustrations about slow response times, so we recommend inspecting the filter immediately upon arrival (including checking for bent edges or unsealed carbon layers). If you receive a damaged unit, contact us within 48 hours with photos, and we'll expedite a replacement or refund.

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Question 4

Are these actually HEPA filters, or is that just a marketing label?**

Accepted Answer

These are 3-in-1 filters with a true HEPA-type media plus an activated carbon pre-filter layer. However, they are not certified H13/H14 medical-grade HEPA—they use a similar high-efficiency material that captures 99% of particles down to 0.3 microns. Many users on YouTube show real-world tests with particle counters, and results are generally good for dust, pollen, and pet dander but less effective on ultra-fine smoke particles compared to premium OEM or medical-grade filters. If you need certified HEPA for allergies or asthma, you may want to stick with the genuine Kenmore part.

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Question 5

Are these filters a better value than buying the official Kenmore KF170 replacements?**

Accepted Answer

For most people, yes—especially if you change filters frequently or are on a tighter budget. A two-pack costs roughly half of a single OEM filter, so you're saving significantly per filter. The trade-off is slightly shorter lifespan and a less precise fit. As one reviewer summed it up: "Best for people who run their purifier in a spare bedroom or office a few hours a day. If you rely on it for heavy-duty allergy control, spend the extra $20 and get the Kenmore brand."

2 Pack KF170 Replacement Filters Compatible with Kenmore 850e Series PM1005 Air Purifier, Part # KF170, 3-in-1 HEPA and Activated Carbon Filter

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