Question 1

How do I know which filter is compatible with my vacuum?

Accepted Answer

Check the model number printed on your vacuum's label (usually underneath the machine or inside the dust compartment), then match it against the accessory's compatibility list. Most major brands — Kärcher, Bosch, Hoover — publish model-lookup tools on their websites. Buying a filter listed as 'universal' is a risk for filtration accessories specifically: a loose fit creates air leaks that bypass the filter entirely, reducing both suction and air quality.

Question 2

Is a HEPA filter worth the extra cost for a home vacuum?

Accepted Answer

Yes, if anyone in your household has asthma, hay fever, or dust mite allergies — a genuine HEPA H13 filter captures 99.97% of particles at 0.3 microns, including allergens that standard filters miss. For households without allergy concerns, a quality pleated cartridge filter is adequate and cheaper to replace. The key word is 'genuine': look for H13 or H14 explicitly stated, not just 'HEPA-style' or 'HEPA-type', which are marketing terms without certification.

Question 3

How often should I replace vacuum dust bags and filters?

Accepted Answer

Dust bags should be replaced when around two-thirds full — overfilling restricts airflow, strains the motor, and reduces suction noticeably. For average home use that typically means every 4–8 weeks. Disposable filters generally last 3–6 months; washable filters can last 1–2 years with regular rinsing. A useful rule of thumb: if suction has dropped and the bag isn't full, the filter is the first thing to check.

Question 4

Can I use third-party accessories instead of branded ones?

Accepted Answer

For brush heads, crevice tools, and hose extensions, third-party accessories are generally fine — compatibility is easier to verify and the performance difference is minimal. For filters and dust bags, we'd be more cautious: generic alternatives often lack proper HEPA certification, may not seal correctly, and can void your vacuum's warranty. The price saving on a filter is rarely worth the risk of reduced air quality or motor damage over time.

Question 5

What's the risk of skipping anti-foaming agent in a wet-dry vacuum?

Accepted Answer

Skipping anti-foaming agent when vacuuming soapy water or foam-producing liquids is a genuine motor risk. Foam can overflow into the motor housing, causing damage that most manufacturers won't cover under warranty. Anti-foaming agents are inexpensive — typically well under 10 £ — and the cost of ignoring them can be a full vacuum replacement. Use the correct concentration (usually 1:10 for concentrate products) and don't substitute washing-up liquid or other household products.

Question 6

Are Festool vacuum accessories really worth the premium price?

Accepted Answer

For professional contractors, yes — Festool's dust extraction accessories meet strict certified dust class ratings (L, M, H) required for trade use, particularly when sanding or cutting materials that produce fine or hazardous dust. For home users, the premium is hard to justify unless you already own a Festool vacuum. At prices well over 26 £, you're paying for trade-grade certification and build quality that most domestic cleaning tasks simply don't require.

Question 7

What hose diameter do I need — 32mm or 38mm?

Accepted Answer

32mm is the standard for most domestic vacuums sold in the UK, including the majority of Hoover, Miele, and Dyson-compatible accessories. 38mm is typical for workshop and wet-dry vacuums, including most Kärcher and Numatic industrial models. Check your existing hose's internal diameter before ordering — a 6mm difference sounds small but means the connection either won't fit or will be loose enough to lose meaningful suction. Some multi-adapter kits bridge both sizes, but they add length and a potential leak point at the joint.

Vacuum Accessories & Supplies Price Comparison

Festool SC-FIS-CT MINI/MIDI-2/5/CT15 Dust bag

DeWALT DCV5011H-XJ vacuum accessory/supply Filter Handheld vacuum

Kärcher 6.414-960.0 vacuum accessory/supply

Numatic Sac HEPA-flo 15L Dust bag Drum vacuum

Kärcher 6.295-302.0 vacuum accessory/supply Cleaning solution

Kärcher 2.641-959.0 vacuum accessory/supply

Kärcher 2.884-280.0 vacuum accessory/supply

Bosch 2 605 411 167 vacuum accessory/supply

Bosch 2 605 411 163 vacuum accessory/supply Dust bag

Einhell 23.511.70

Einhell 23.511.50

Einhell 23.511.52

Bosch 1 609 390 481 vacuum accessory/supply Nozzle Drum vacuum

Kärcher 6.415-953.0 vacuum accessory/supply

Kärcher 2.863-006.0 vacuum accessory/supply

Kärcher 2.633-112.0 vacuum accessory/supply

Kärcher 2.863-005.0 vacuum accessory/supply

Kärcher 6.903-033.0 vacuum accessory/supply

Bosch 2 607 432 037 vacuum accessory/supply

Makita P-72899 vacuum accessory/supply Dust bag Drum vacuum

Bosch 2 607 001 977 vacuum accessory/supply Hose adapter Universal

Kärcher 5St. -NT 65/2 ECO Dust bag Cylinder vacuum

Festool 440404 vacuum accessory/supply

Einhell 2351159 vacuum accessory/supply Dust bag Drum vacuum

Vacuum Accessories & Supplies Price Comparison