Industrial testing vendors

Altitude / hypobaric test chambers (temperature and low pressure), not athletic rooms. The contact page also names ESPEC CORP. (Japan), ESPEC Europe and ESPEC China. The European distributors URL was linked from the product page and was not used as a price source.

Industrial environmental and altitude / space-simulation test chambers. Official URL was not recorded in the original notes; the global English homepage loaded on 14 Nov 2026. North America site: https://weiss-technik-na.com/ (Grand Rapids, MI). Weiss Technik North America also states that Cincinnati Sub-Zero (CSZ) is one of its product brands (see CSZ row). A dedicated global contact URL was not separately confirmed; the NA contact page is the one that was fetched.

Holland, Michigan (stated on the contact page). RH-series altitude test chambers. Also has a request-a-quote path.

Cincinnati, OH, on the product page. Official URL was not recorded in the original notes; the altitude-chambers page loaded on 14 Nov 2026. Weiss Technik North America's homepage describes CSZ as one of its product brands, so this row and the Weiss Technik row are related companies, not two unrelated makers. Also has a sales-rep locator.