空气通过口腔和鼻孔被吸入，其中鼻孔可以通过鼻毛捕获空气中的尘埃而起到过滤空气的作用。
Air is drawn in via the mouth and the nose, the latter acting as an air filter by trapping dust particles on its hairs.
如果是使用生物阻抗电子秤，确认每次是在同样的条件下。水和作用，吸入的食物和皮肤温度能过影响体脂的测量。
If using a bioelectrical impedance scale, be sure to measure under the same circumstances each time. Hydration, food intake and skin temperature can affect body fat measurements.
水和作用，吸入的食物和皮肤温度能过影响体脂的测量。
Hydration, food intake and skin temperature can affect body fat measurements.
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