| Type | Style | Company Name | Link |
|---|---|---|---|
| HVAC Systems | Field Controls | http://www.fieldcontrols.com/ | |
| HVAC Systems | Johnson Controls, Inc. | http://www.johnsoncontrol.com | |
| HVAC Systems | Steril-Aire, Inc. | http://www.steril-aire.com/ | |
| HVAC Systems | Triatomic Environmental Inc. | http://www.freshairuv.com | |
| HVAC Systems | Zentox | http://www.photoxpureair.com |