A quiet, secure environment against RF and microwave signals may be needed for the purpose of conducting some secret meetings or studies using electronic devices. In case a secure environment is needed for confidential and delicate information, “safe quiet rooms” installation service is provided by Kemar EMC. There is also a sound insulation feature. RF, microwave signal protection and sound insulation technologies are used together. It is specially designed for insect-protected communication and conversations. The room can be easily established in existing indoor areas, meeting rooms or offices, etc.