Nicomac Clean Rooms Far East Pvt Ltd. Supplies Double Glazed Clean Room Windows. Nicomac Clean Rooms Far East Pvt Ltd. Offers granulation lines, modular clean rooms. Double Glazed Clean Room Windows are especially designed for the cleaning needs of the pharmaceutical clean room. Double Glazed Clean Room Windows are completely silicone sealed, and includes a micro-perforation profile with an integral silica gel moisture absorption system, designed to eliminate fogging. Rounded corners add to the strength of the clean room window unit and enhance their appearance.