Air blower apparatus for use in inspection apparatus and inspection apparatus housing with the air blower apparatus

An inspection apparatus housing comprising:

• an air blower apparatus for use in an inspection apparatus;
• and
• a recording apparatus for recording data on said recording medium,
• wherein said air blower apparatus comprises an air blowing device for blowing air via an air filter to a recording medium being measured and to said recording apparatus,
• wherein said air blowing device comprises:
• (a) a fan unit provided above said recording medium;
• and
• (b) a fan unit housing provided above said fan unit, said fan unit housing including a first buffer space having an inlet port directed substantially downwardly toward said recording medium, said first buffer space temporarily accumulating air inhaled from said inlet port,
• wherein said fan unit inhales air from said inlet port that faces said first buffer space, discharges inhaled air at a substantially constant air flow rate to deliver the air via an air filter from an outlet port to said recording medium by means of a fan, and the discharged air is reflected on said recording medium and returns to said inlet port, thereby not only forming a circulation path of a flow of air, the flow of air flowing from said first buffer space via said inlet port, said fan, said air filter, said outlet port, said recording medium and said inlet port and returning to said first buffer space, but also inhaling outside air from said inlet port, whereby a temperature distribution in the vicinity of said recording medium is maintained to be substantially constant.