Plastic flush-mounted housing with fire protection shut-off element 90, metal outlet spigot with automatic non-return damper and shut-off in the event of fusible link release. Outlet spigot available sideways upwards, can be swivelled to the left or right. Can be repositioned for rear air outlet in any position using accessory set -ARS, no. 8185. Replaceable hinged plaster cover. Otherwise as ELS-GU. Connection DN80 mm. For ventilation of kitchen, bathroom or WC. With accessory set -ZS, no. 8186 also for two-room ventilation of bathroom and WC. Flush-mounted installation in ceiling or wall, also outside 90 mm shafts. Connection to main pipework using steel pipe. One or two devices per floor up to 20 storeys. The non-return damper for fire protection housings also fulfils the requirements of a cold smoke shut-off damper. For domestic kitchens, the use of a fan with 100 m³/h is recommended.