Swegon: NSHEV's: Meeting the Standard for Passive Ventilation

Carrying on with the theme of Smoke Extraction from last year, this month we will look at a slightly different product, a Natural Smoke and Heat Exhaust Ventilator (NSHEV).
A natural smoke and heat exhaust ventilator (NSHEV) is a passive ventilation product designed to automatically open (this can be manually operated in certain instances) in the event of a fire to allow, through the process of natural ventilation, external exhausting of heat and toxic gases from buildings helping to prevent the spread of fire and improve visibility for occupants and firefighting personnel.