肺活量測量水柱

以往一般使用的大水桶作肺活量量度工具, 但較煩覆且不準確.
(肺活量測量水柱)這個獨特的新設計, 專門用作量度肺部容量, 特硬透明膠圓柱管, 先從頂部注入水, 水滿後把頂部蓋上膠塞, 在下孔插入膠喉便可進行呼氣實驗; 整個過程不用把甚重的水柱移動, 即使女教師們亦可以單手輕易操作, 比較以前大水桶的舊式裝置, 要費力還可能弄濕身體, 這款新肺活量測量水柱確實方便易用得多, 並且安全可靠. 柱上印有巨型字母方便後排學生觀看, 不用上前亦可一目了然 .
來! 來! 齊來比試一下誰的肺活量最高 .
Dimension : 130mm x 500mm (Diameter x Height ) , max volume 7 Litre.
Supplied with 2 metre soft plastic tubing.
Item no : 179

LUNG capacity water column
To find out the volume of air breath by pupil, this is an popular experiment during secondary school.
follow the instruction manual to fill water into water column, try to breath air as more as possible into column to displace the water out, the volume of water diplaced is equal to the air breath out by user and it is display by the surface mark of column
Dimension : 130mm x 500mm (Diameter x Height ) , max volume 7 Litre.
Supplied with 2 metre soft plastic tubing.
Item no : 179

 

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