Air shower apparatus

An air shower apparatus including a first face portion and a second face portion disposed to face each other in a first direction and generating an air shower inside a first space between the first face portion and the second face portion, the air shower apparatus comprising:

• a plurality of first blowers provided in the first face portion, each of the plurality of first blowers including a first opening through which air is blown out;
• a plurality of second blowers provided in the second face portion, each of the plurality of second blowers including a second opening through which air is sucked, the second opening being disposed to face the first opening included in each of the plurality of first blowers;
• a plurality of third blowers provided in the second face portion, each of the plurality of third blowers including a third opening through which air is blown out or sucked;
• a plurality of fourth blowers provided in the first face portion, each of the plurality of fourth blowers including a fourth opening through which air is sucked or blown out, the fourth opening being disposed to face the third opening included in each of the plurality of third blowers;
• and
• a switching unit that switches operations of the plurality of third blowers and the plurality of fourth blowers, wherein
• in a first set of a first blower of the plurality of first blowers and a second blower of the plurality of second blowers,
• the first blower blows out a first spiral airflow from the first opening included in the first blower toward the second opening included in the second blower, and
• the second blower sucks the first spiral airflow blown out by the first blower from the second opening included in the second blower, and
• the switching unit switches the operations of the plurality of third blowers and the plurality of fourth blowers such that
• in a second set of a third blower of the plurality of third blowers and a fourth blower of the plurality of fourth blowers,
• the third blower blows out a second spiral airflow from the third opening included in the third blower toward the fourth opening included in the fourth blower, or the fourth blower blows out a third spiral airflow from the fourth opening included in the fourth blower toward the third opening included in the third blower, and
• when the third blower blows out the second spiral airflow, the fourth blower sucks the second spiral airflow blown out by the third blower from the fourth opening included in the fourth blower, and
• when the fourth blower blows out the third spiral airflow, the third blower sucks the third spiral airflow blown out by the fourth blower from the third opening included in the third blower, and
• the air shower apparatus generates the air shower inside the first space by a plurality of the first spiral airflows blown out from a plurality of the first openings included in each of the plurality of first blowers and a plurality of the second spiral airflows blown out from a plurality of the third openings included in each of the plurality of third blowers or a plurality of the third spiral airflows blown out from a plurality of the fourth openings included in each of the plurality of fourth blowers.