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Shop-Vac Class Actions Filed

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Several class action lawsuits have been filed against Shop-Vac vacuums regarding the alleged misrepresentation of horsepower. According to a class action lawsuit filed in California, tests were performed on various Shop-Vac models in an effort to assess if the horsepower advertised was true.

NewsInferno reports the California complaints details its findings as “Measurements were taken for line current, power factor, barometric pressure, air duct temperature, total pressure, static pressure, free velocity and air flow. From these measurements, incoming horse power, air flow and air horse power were calculated. Testing was done at the typical household voltage of 120 Volts rms.

The test results and attendant calculations showed that the Shop Vac vacuums, in actual use, produced a range of 17% to 40% HP under full load and 26% to 51% HP when under no load. (See chart at ¶ 25) However, even this measurement is taken at the motor, and is not a true indication of the actual work that the vacuum performs.

To observe a true measure of actual work, Plaintiff’s laboratory measured and calculated “air horsepower,” or the actual suction power of the vacuum. Air horsepower is a more accurate measurement of the vacuum’s ability to do work as it corresponds to the power seen at the intake of the vacuum. In essence, air horsepower corresponds directly with the vacuum’s ability to do the work that a consumer expects.

The test results and attendant calculations showed that the Shop Vac units, in actual use, produced a range of a negligible percentage to 2.7% air HP with no load and 1% to 10.3% air HP at 90% load.”

Shop-Vac vacuums marketed with higher horsepower are more expensive, and the class action lawsuits seek to discover if the company is committing consumer fraud. disclaimer: This article: Shop-Vac Class Actions Filed was posted on Friday, April 13th, 2012 at 8:35 pm at and is filed under Fraud Lawsuits.

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