Hello everybody. I have built the soundproof cabinet with ventilation for my BambuLab A1 using IKEA furniture as a basis. I achieved noise level from 1 meter distance - 36.5dB(A) and at a distance of 2 meters - 36.32dB(A) with fan working and printing using Standard printing mode. You can find more pictures and detailed description of all components I used to build this noise insulation cabinet on the web-page: https://www.tinkervault.com/3d-printer-soundproof-enclosure?lang=en(Edited)