this site have 3 month active. have 3xT9 and 1xS9

the capacity is arround of 70 amp with three-phase on 220 VAC. have one AC with 12K BTU... the external temp is arround of 34 degres Celcius / 93 Fareheit.

the dimencions of the room is arround of 3.5x4 meters.

pictures:

https://preview.ibb.co/nqrj0o/1.jpg
https://preview.ibb.co/ibzF6T/2.jpg
https://preview.ibb.co/jH440o/4.jpg
https://preview.ibb.co/hN6v6T/6.jpg
https://preview.ibb.co/eY72mT/7.jpg

in the real life:

https://preview.ibb.co/d9RCmT/0b08d588_a8e8_4e31_a340_e0f6b060c29f.jpg
https://preview.ibb.co/msdgfo/03b619f2_23fe_4fe7_a2b3_230bc962158a.jpg
https://preview.ibb.co/eLe9Y8/3a032e9e_d994_4264_8d99_2f8254abc0f8.jpg
https://preview.ibb.co/iCzyRT/6fd0c500_cb1a_42e4_b1bd_6b7de9e822f3.jpg
https://preview.ibb.co/f7Z9Y8/655f840e_3671_4375_b1bf_4d8c70b2b285.jpg
https://preview.ibb.co/fkBZ0o/704e9c32_460d_4f5d_9a99_1c22da58f336.jpg
https://preview.ibb.co/g37UY8/3751d809_9061_4db3_a075_13e69e3dcd24.jpg
https://preview.ibb.co/k9KF6T/efc0cdc5_52e5_42dd_998d_e6ca20709e82.jpg

What is your opinion, what can I improve in this installation? I'm thinking of placing an extractor apart from the miners' extractor. Is this a good idea?