Notice anything unique about the picture to the right?

Answer: Yes, that's the famous L-Train of Chicago just outside a suite at the Hotel Allegro.

Therm-O-Lite Windows provide hotel and building owners with a unique solution to the problem of excessive noise levels. The incorporation of the Therm-O-Lite interior supplemental window system dramatically reduced decibel levels, in some cases by as much as 80%. In one recent example, the Therm-O-Lite system reduced the noise level from a STC 26 to STC 49 (NTIS Standard No. PB-222-703), which is considered a "Dramatic Change" based upon that standard.