With rapid globalization the building and HVAC systems have become more complex and energy intensive thus raising concerns about efficiency of the system and environment safety in general. Glenstorms have come up into products which control and monitor the air distribution systems using optimum sources efficiency. Taking roots from design and manufacturing of HVAC products with objectives of specialization in air movement and control for central and unitary air conditioning systems. With changing concept of fire safety, smoke control and general air quality within the HVAC systems design