<Silencer silencer silencer / soundproof system> We, Japan Noise Control (NNC), are a high-technology group that always aims to create a more comfortable sound environment. As a noise control system engineering company in the field of construction and industry, we have built up many achievements such as developing the first ultra-quiet space in Japan with an allowable value of "NC15", which is said to be the limit of noise in the indoor environment. NNC will endlessly expand its dreams to create a sound space of "moisture" and "peace" that can meet the needs of the new era and to advance into new fields. We have added a catalog of muffling countermeasure products for outdoor equipment (fans, chillers, PAC outdoor units) and muffling chambers for air conditioners (using path differences). Please see the catalog introduction page. Copyright (c) 2004 Nippon Noise Control Ltd. All Rights Reserved. ｜　Link　｜　Inquiry　｜