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Humidifier - Patent 5318731 |
 | | A humidifier as claimed in claim 3, wherein said ribs are fixedly adhered to whole inner surface of the tubular film structure in such a manner that they are arranged substantially at equal intervals and in parallel with the longitudinal axis thereof. |
 | | In another humidifier of the invention, a plurality of ribs made of a flexible material are fixedly adhered to a substantially half of the inner surface of the tubular film structure, and the tubular film structure together with the spacer board is spirally wound with the ribs set closer to the center of the spiral. |
 | | Thus, in the humidifier of the invention, the large area of the moisture permeable film is brought into contact with the air supplied to the humidifier, so that the amount of humidification is greatly increased, and the resistance against the air supplied to the humidifier body is greatly reduced. |
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