描述： 1. A temporary 35dB NR sound proof room with air con and lights for 7 days install & dismantle 2. temporary sound proof room 3. 70 to 75dB from PA back side 4. add irregular air con duct for soundproof, add lights; if extra space is allowed, may need sound lock door instead of a normal door which improves soundproof; 1 side of the wall will have loading capacity for 3x 75" TV

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