Dyson, the manufacturer of household appliances, has received a legal battle in European courts on the laws on energy labeling of vacuum cleaners.
An engineering firm in the United Kingdom required tests to evaluate the effectiveness of suction devices that gave priority to rival models.
The company, which has been working to solve this problem since 2013, said that the decision is a "win for consumers".
The founder of the company, Sir James Dyson, claimed that the testing of suction devices when they were empty from dust devices using disposable sacks is more effective.
He claimed that this meant that the tests misled "consumers about the true impact of the machine they buy on the environment".
Dyson vacuum cleaners are "without pads".