tldr; Compact German canister at 11 lbs. Same S-class filtration as E3 but smaller for apartments.
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Best praise vs top criticism for Sebo Airbelt K3
“If severe dust allergies and asthma are your primary concerns, the SEBO K3 is an excellent choice, especially when compared to the Miele C3 or C1 Turbo. Here’s why: 1. Superior Sealed System SEBO vacuums are designed with a truly sealed system, which means that all the air passes through the filtration system before being released back into your home. Unlike some Miele models, which have been reported to leak fine dust around the bag housing, SEBO’s design ensures that no unfiltered air escapes. This is crucial for someone with severe dust allergies or asthma. 2. Hospital-Grade S-Class Filtration SEBO’s standard S-Class filtration is already hospital-grade, capturing 99.97% of particles down to 0.3 microns, which is comparable to HEPA filtration. If you prefer, you can upgrade to a HEPA filter for even more protection. This means the air released by the SEBO K3 will likely be cleaner than the air in your home before vacuuming, which is a huge for allergy sufferers. 3. Better Long-Term Performance Bagless vacuums like your Shark often release fine dust back into the air during use or when emptying, which can exacerbate allergies. With SEBO, the multi-layered bags are designed to seal completely when removed, ensuring no exposure to allergens. You’ll notice no hot, dusty air blowing back at you when vacuuming. While Miele bags are also sealed, the SEBO’s leak-free system provides an additional layer of reassurance. The K3 also comes with a 10 year warranty when you buy from an Authorized Dealer. 4. Pet Hair and Carpet Performance The SEBO K3 comes with the ET-1 powerhead, which is exceptional for medium-pile carpet and pet hair. It allows you to adjust the height manually to suit your carpet pile, ensuring consistent performance without scattering debris. While Miele’s suction is slightly stronger on paper, the SEBO’s combination of power and thoughtful design (like its L-shaped powerhead for edge cleaning) makes it more effective in real-world use, particularly for pet hair and deep carpet cleaning. 5. Ease of Maintenance SEBO vacuums are built for ease of use and maintenance. For example, the brush rollers on the ET-1 can be removed without tools for easy cleaning—great for dealing with pet hair tangles. The bags are larger than Miele’s, requiring fewer changes, which is a cost-saving bonus. If your priority is protecting against allergens and asthma triggers, the SEBO K3’s sealed system and superior filtration give it the edge over the Miele C3 or C1 Turbo. It’s designed to prevent allergen leaks entirely, while still providing excellent performance on both carpets and hard floors. Plus, SEBO’s durability and ease of maintenance make it a solid long-term investment. For someone with severe allergies and asthma, it’s hard to go wrong with the SEBO K3.”
“I second “neither”. I had a high end Dyson cordless (Dyson Outsize Absolute+) and a V8 Animal cordless. The Outsize needed a new beater bar 2 years later and they no longer manufacture them. “Customer Service” said they would add me to a list for when they become available again. An $800+ vacuum and it’s all but useless except for quick pickups. I bought a Sebo K3 a month ago because I’m sick of the flimsy Dyson and my house being constantly dusty. Game changer for me! I have two big dogs who shed constantly in 1200 sq ft. The first bag lasted a month, and I’m hoping subsequent bags last longer. Bag changes are very clean, much cleaner than emptying the Dyson bin. AND my house is less dusty!”
2,095 Reddit opinions analyzed • Last updated 2/24/2026