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Safety device for breathalyser incorporating non-return valve - to prevent accidental inhalation of fumes from indicator chemicals
Safety device for breathalyser incorporating non-return valve - to prevent accidental inhalation of fumes from indicator chemicals
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机译:内置止回阀的呼吸分析仪安全装置-防止意外吸入指示剂产生的烟雾
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摘要
Breath testing devices used to estimate the amt. of alcohol consumed by a motorist frequently require the motorist to exhale through an ampoule, contg. indicator chemicals. The device comprises a tube into one end of which the indicator ampoule is fitted. The other end of the tube accepts a tubular connector to a renewable mouthpiece. The inner end of the connector is equipped with a non-return valve. Prevents accidental inhalation of unpleasant or dangerous fumes from the chemicals.
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