SEBO buying guide · Ace Vacuums
SEBO 300 & 350 MECHANICAL: Features & Buying Guide
Two durable upright vacuums. Two cleaning widths. The SEBO 300 and 350 MECHANICAL combine manual brush-height control, bagged dirt collection, and straightforward maintenance for routine carpet cleaning.
Which should you choose? The narrower 300 is a practical choice for rooms with more furniture. The wider 350 suits open carpeted spaces where covering more floor per pass matters.

12-inch power head

14-inch power head
SEBO 300 vs. 350 MECHANICAL at a glance
The key choice is the size of the cleaning head. Both models share the same core convenience features, including a long cord, onboard tools, and four manual brush-height settings.
| Feature | 300 MECHANICAL | 350 MECHANICAL |
|---|---|---|
| Power-head width | 12 inches | 14 inches |
| Cleaning-path width | 10.5 inches | 12.5 inches |
| Brush-height adjustment | 4 manual settings | 4 manual settings |
| Bag capacity | 1.4 gallons | 1.4 gallons |
| Power cord | 39 feet | 39 feet |
| Wand + hose reach | 8 feet combined | 8 feet combined |
| Included tools | Crevice tool, dusting brush, upholstery nozzle | Crevice tool, dusting brush, upholstery nozzle |
| Edge cleaning | One-sided | One-sided |
| Our buying guidance | Tighter routes and furnished rooms | Larger, open carpeted areas |
Features that make everyday cleaning easier

Set the brush height for your carpet
Four height positions let you adjust the brush to the surface. The cleaning wand can be used to press the adjustment button while standing. This is manual control: the vacuum does not automatically select the setting for you.
For a buying demonstration, bring details about your carpet type, pile, and any care restrictions. Check the carpet maker’s guidance before using a powered brush on delicate rugs.

Remove hair buildup and replace worn bristles
The brush strip can be removed without tools, making routine cleaning and replacement easier. This is particularly useful when hair and thread accumulate around the brush.
A brush-obstruction indicator and automatic shutoff help protect the machine if the brush jams. Switch off and unplug it before removing an obstruction; do not repeatedly restart a jammed brush.
Reach beyond the floor
The integrated hose and wand provide an eight-foot combined reach for corners, edges, and above-floor cleaning. Use the upholstery nozzle for furniture, the crevice tool for narrow gaps, and the dusting brush where appropriate.
An optional nine-foot extension hose provides a total hose length of 15 feet. Confirm attachment compatibility before ordering.
Clean longer routes with fewer stops
A 39-foot cord reduces the need to move between outlets. The rotating cord hook makes unwinding easier, while the carrying handle helps when moving the vacuum between cleaning areas.
The externally replaceable cord and integrated strain relief simplify servicing. Use the specified replacement cord and follow the owner’s manual.
Work around furniture and edges
Both heads provide one-sided edge cleaning. A low reclining profile helps reach under furniture, while rubber-coated wheels support smooth movement.
Measure the clearance under your own furniture before buying; head shape and approach angle also affect access.
Built for regular maintenance
Reinforced geared belts, an accessible clog-removal door, and a foot-pedal stress-release mechanism support everyday durability and serviceability.
These design features make maintenance more practical, but bags, filters, and brush strips still need regular attention.
Bag capacity and filtration: what to know
The 1.4-gallon filter bag holds collected dirt in a disposable bag. Close its hygiene cap before removal and disposal to help contain dust. Actual replacement frequency depends on the amount and type of debris collected.
SEBO lists a three-stage arrangement: a three-layer AeraPure bag, a pre-motor microfilter, and an S-class or optional HEPA exhaust microfilter. HEPA is an available option, so confirm the filter supplied with the specific machine.
The orange bag indicator can signal a full bag, restricted airflow, or a dirty filter. Replacing the bag alone may not solve a blockage. Check the airflow path and filters as directed in the manual.
Need supplies? Contact Ace Vacuums with your exact model before purchasing vacuum bags or replacement parts.
Is a SEBO MECHANICAL right for your floors?
A useful option to compare for
- Homes with substantial carpeted space.
- Offices and similar spaces with regular carpet-cleaning needs.
- Owners who prefer bagged disposal and accessible maintenance.
- Cleaning routines that also need a hose and onboard tools.
Discuss these needs before choosing
- Delicate rugs or carpet with specific brush restrictions.
- Mostly hard floors or sensitive floor finishes.
- Frequent carrying between floors or long staircases.
- A preference for automatic height adjustment.
The right vacuum depends on your surfaces and layout. Ask us to compare a MECHANICAL upright with other SEBO models for your particular mix of floors.
A simple maintenance checklist
- Disconnect power first. Switch off and unplug before cleaning the brush, clearing a clog, or performing maintenance.
- Check the bag and airflow. Investigate an orange indicator rather than continuing to run with reduced suction.
- Remove hair and thread. Inspect the brush strip and replace it when worn, following the manual.
- Maintain the filters. Use compatible replacements and the manufacturer’s service instructions.
- Inspect the cord and attachments. Stop using a damaged cord. If a fault or shutoff persists, arrange professional service.
For recurring clogs, unusual noises, or a brush that will not run, contact our vacuum repair team. For coverage questions, visit our warranty center; warranty terms depend on the model and use.
Frequently asked questions
What is the difference between the SEBO 300 and 350 MECHANICAL?
The main difference is width. The 300 has a 12-inch power head and a 10.5-inch cleaning path; the 350 has a 14-inch power head and a 12.5-inch cleaning path. Choose the 300 for tighter layouts or the 350 for wider, open carpeted areas.
Does the SEBO MECHANICAL adjust its brush height automatically?
No. Both models have four manual brush-height settings. Adjust the setting for the carpet rather than assuming one position will suit every room. The wand tip can be used to press the height-adjustment button.
Is HEPA filtration standard?
An optional HEPA exhaust filter is available. Do not assume every MECHANICAL vacuum includes it. Confirm the fitted filter and compatible replacement with Ace Vacuums before ordering.
Which attachments are included?
Both models include a crevice tool, dusting brush, and upholstery nozzle, plus the integrated wand and suction hose. Extension hoses and additional specialty attachments are optional.
What does the orange bag indicator mean?
It can indicate a full bag, an airflow blockage, or an excessively dirty filter. Switch off and unplug the vacuum before checking the bag, hose, airflow path, and filters. If the warning persists, arrange service.
Can Ace Vacuums help with bags, parts, and repairs?
Yes. Contact our Fairfax or Leesburg store for help identifying compatible supplies and arranging service. Have your model number and serial number available, and call ahead to confirm parts or model availability.
Fairfax & Leesburg, Virginia
Get help choosing and caring for your SEBO
Talk with Ace Vacuums about cleaning width, carpet compatibility, attachments, replacement supplies, and service. Call ahead for current model availability and demonstration options.
Product specifications and feature images: SEBO America — 300 & 350 MECHANICAL. For operating instructions, consult the SEBO MECHANICAL owner’s manual. Model-selection guidance by Ace Vacuums. Specifications and included accessories should be confirmed for the unit being purchased.