From Carpet to Hard Floor: Planning an Acoustic Laboratory for Vacuum-Cleaner R&D

An acoustic laboratory for vacuum-cleaner development is more than a quiet room with a product inside. For an R&D team planning a facility, the priority is to accommodate the specified floor surface, accessories and operating conditions, then bring together the acoustic environment, operating space and sample preparation. The finished facility should support the tests the product actually needs.

From carpet to hard floor: the surface is part of the test

A dry vacuum cleaner operates with its cleaning head in contact with a surface. The test may also require prescribed movement. A plan showing only room dimensions and sound-absorbing materials can therefore leave the intended testing impractical after equipment arrives.

The public scope of IEC 60704-2-1:2026 connects noise measurements for household and similar dry vacuum cleaners to normal operation on carpet and hard floor, and includes accessories and docking stations. A test surface is not a decorative detail that can simply be replaced by any household carpet. Materials, arrangement and operation need to be checked against the selected method.

Planning should therefore start with the actual sample: how it is positioned, how its cleaning head operates, how the surface is prepared and how much space the measurement arrangement requires. The test surface and room acoustics should be designed together, rather than adding the surface after the acoustic construction is complete.

Include the main unit, accessories and docking station in the brief

Customers use a working product system, so laboratory planning should not consider only the bare main unit. For cleaning heads, connecting accessories and docking stations included in the test programme, establish which are tested together and which need separately defined operating conditions. A product without a particular function does not need facilities specified for that function.

Beyond the measurement area, the layout should address storage for samples and accessories, handling of floor materials, charging and sample preparation. These supporting activities need not all take place inside the acoustic measurement room. Defining the roles of preparation and measurement areas gives the purchaser a clearer view of the total footprint than comparing room areas alone.

A noise laboratory is not a complete cleaning-performance laboratory

“How much noise does it make?” and “How well does it clean?” produce different results. IEC 62885-2:2026 separately addresses dry-vacuum-cleaner performance measurements. A noise result cannot replace a cleaning-performance assessment, and building an acoustic laboratory does not automatically provide every condition needed for cleaning-performance testing.

When a project includes both activities, define their methods, equipment, materials and responsibilities separately before deciding which supporting spaces can be shared. This article concerns R&D acoustic environments for dry vacuum cleaners. Wet-cleaning functions and cleaning robots should not be assigned the same scheme without checking their respective requirements; the performance standard also has product-specific scope restrictions.

Lessent's planning approach: design the room around the product test

Lessent's acoustic-test-environment business covers design, manufacture and engineering implementation. For this R&D application, facility planning should focus on how the acoustic environment accommodates the product's testing workflow. Whether dedicated cleaning-performance equipment is needed, and who provides it, must be established separately for the project.

An integrated proposal should connect the acoustic measurement environment, operating surface, working space and supporting preparation areas. Beyond a room rendering, the purchaser should be able to identify the proposed tasks, the space conditions needed for each and how those conditions will be verified at handover. Defining how the product will be tested before deciding how to build the laboratory helps focus the investment on the capabilities actually required.

Sources

[1] IEC, IEC 60704-2-1:2026, Dry-vacuum-cleaner airborne-noise test code. The article uses the official public scope description, not the full standard.
https://webstore.iec.ch/en/publication/86833

[2] IEC, IEC 62885-2:2026, Dry-vacuum-cleaner performance measurement methods. The article uses the official public scope description.
https://webstore.iec.ch/en/publication/82454

[3] Lessent, Acoustic Laboratory Solutions. Used only to establish the company's publicly stated business scope.
https://www.lessent.com/labs