Walk-in fume hoods are widely used, and many chemical laboratories choose them. Their main advantage is that they can accommodate relatively tall and large equipment, and operators can step fully inside the hood. They are designed for laboratories that need a higher working space, and are mainly used to collect and discharge the harmful gas sources produced in various testing processes. The design follows a people-oriented concept, with specific designs adapted to the characteristics of different industries, so as to meet the operating requirements of different laboratories.

In the chemical, pharmaceutical, environmental protection, hospital, food and research institute sectors, the harmful sources are mainly organic gases and inorganic waste gases, and most of them are heat sources, with some acid and alkali gases. The main structure must therefore take full account of the airtightness of the space inside the hood, effectively removing harmful gases, odours, moisture and flammable, explosive and corrosive substances, and protecting the health of laboratory staff — which is where its safety advantage lies.