For selection according to needs: UFA-LINE recirculating air filter attachments with integrated electronic exhaust air monitoring for the safe detection of released vapors at their point of exit or formation or ventilation modules for technical ventilation of up to four hazardous material cabinets or ventilation attachments / modules for installation on the safety cabinet or for wall mounting or exhaust air monitoringfor quick installation on safety cabinets for safe and reliable monitoring of exhaust air quantities or fans.