Reference tables
Quick answer
302 tables covering the figures people actually look up: what a given pascal or air watt rating means by machine type, how often each filter wants changing in a given household, which machine suits which floor, and what each replacement part costs against the machine it goes into.
Each table states whether it is using a published specification or a service convention.
- 56 tables
Symptom to cause tables
What each complaint usually turns out to be, in the order a service technician checks it, for every machine type.
- 30 tables
Filter schedules
How often each filter type wants cleaning and replacing, adjusted for the household it lives in.
- 42 tables
Floor type matrices
Which machine type suits which floor, and what each pairing costs you.
- 54 tables
Suction figures explained
What a given pascal or air watt figure means, by machine type, and what it does not tell you.
- 60 tables
Runtime and coverage
Whether a given runtime covers a given home, and what the bin capacity means for how often you empty it.
- 18 tables
Parts by brand
Which filter, bag, brush roll, belt or battery a given brand of machine takes, and what it costs to keep running.
- 24 tables
Robot navigation and docks
Lidar, vSLAM, obstacle avoidance and self emptying bases, matched against home size.
- 18 tables
Repair economics
What each part costs against the machine it is going into, and where the half price rule lands.
How to read the labels on every table
A table marked Standard is working from a published manufacturer specification, a defined unit, or a physical relationship that does not vary by opinion. A table marked Convention is working from a widely used service rule of thumb, which is useful and defensible and is not a specification.
The distinction matters because the two fail differently. A published specification can be measured under conditions you will never clean in; a convention can simply be wrong for your particular machine. Where neither exists, the tables say the figure is not published rather than estimating one.
Common questions
Where do these figures come from?
Unit definitions and manufacturer specifications where the figure is published, and clearly labelled service conventions where it is not. Every table carries one of those two labels, and where no documented figure exists the tables say so rather than filling the gap. Nothing here was measured by us, because this site has not tested a vacuum.
Can I convert pascals to air watts?
There is no valid conversion between pascals and air watts. Pascals describe pressure with the inlet sealed; air watts describe work done while air is actually moving. A chart that converts one into the other is inventing a relationship that does not exist, so compare pascals against pascals and air watts against air watts, and only within the same machine type.
Why are there so many of these?
Because the useful version of a reference table is the specific one. "What does 12,000 Pa mean on a robot vacuum" is answerable and worth reading; "how much suction do I need" is not. Each table here works through one specific combination rather than gesturing at a range, which is also how people actually search.
How current are the prices?
Prices come from our catalog of verified listings and are read when the site is built, so they move when the catalog is refreshed. Every product card also carries a note saying prices change often, because they do, and a figure on a page is never a quote.
Every figure here comes from published manufacturer specifications, owner reported measurements and repair documentation, and each is labelled as either a standard or a convention. This is researched general information to help you diagnose and plan, not professional advice, and it cannot tell you what is wrong with one particular machine. Your own manual and the part number printed on your machine are the final word.