Purpose of the Study. To define the types and models of vacuum cleaners releasing the least amount of cat allergen.Methods. Nine vacuum cleaner models were loaded with dust containing 50 mg of Fel d I (the major cat allergen) and run for 15 minutes in a laboratory room (volume = 18 m2). The airborne concentration of Fel d I was measured.Results. Vacuum cleaners using a double-thickness dust bag had much less leakage than those with a single-thickness bag. Two water-filter vacuum cleaners emitted high concentrations of Fel d I; furthermore, 90% of the allergen was in particles of less than 2.5 μm. Taping electrostatic filter paper over the air outlets controlled this.Reviewer's Comments. It is obviously important that individuals who have cat allergy and have cats in the home use a vacuum cleaner that reduces cat allergen exposure rather than increase it. This study demonstrates that certain types of vacuum cleaners may actually increase airborne cat allergen and furthermore, that certain refinements may improve their function.
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机译：这项研究的目的。定义释放猫过敏原最少的真空吸尘器的类型和模型。九个真空吸尘器模型装有50 mg Fel d I（猫的主要过敏原）的粉尘，并在实验室（容积= 18 m2）中运行15分钟。测量了空气中Fel d I的浓度。使用双厚度集尘袋的吸尘器的泄漏要比单厚度集尘袋的少。两台滤水器真空吸尘器排放出高浓度的Fel dI。此外，90％的过敏原在小于2.5微米的颗粒中。在出风口上贴上静电滤纸可以控制这一点。患有猫过敏并在家中养猫的个人使用真空吸尘器可以减少猫过敏原，而不是增加猫过敏原，这显然很重要。这项研究表明，某些类型的真空吸尘器实际上可能会增加空气中的猫过敏原，此外，某些改进措施可能会改善其功能。
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