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Negative Pressure Units smart dec
Version 230 V

S 50

S 50 / S 55

S 200
S 200

S 300
S 300


Technical data: 

  S 50 S 55 S 200 S300
Dimensions in mm (LxWxH) 530 x 386 x 397 745 x 410 x 790 845 x 718 x 790
Weight incl. Filter 21,5 kg 45 kg 66 kg
Voltage 230 V
Power consumption 1,2 A 2,6 A 5,5 A
Motor power in 0,21 kW 0,385 kW 0,75 kW
Volume flow without filter 1700 m³/h 3000 m³/h 6000 m³/h
Volume flow with filter 900 m³/h * 2300 m³/h * 4200 m³/h *
Filter stages 2
HEPA filter dimensions in mm 284x284x150 305x305x150 305x610x292 610x610x292
Hose connection suction (mm) Option
Hose connection exhaust air (mm) Option NW 300 NW 450
Control options SE SE **, SRE connect
Chassis with wheels No Integrated

* Only original deconta HEPA filters H13 and H14 ensure machine safety!
** Without connect package, the S 200 and S 300 can be controlled manually via the touch display (SE version)

2 control options

connect     SE


For power regulation, the NPU is supplied with manual stepless speed control via the touch display (S 50 / S 55 manual speed control only). For a fee, the connect function can be unlocked at any time.


connect     connect

SRE connect
IoT (Internet of Things) => Devices with SRE connect control can be remotely controlled and monitored with any Internet-enabled PC, mobile phone or tablet.
For power regulation, the NPU is supplied with a control via a touch display to measure and regulate the negative pressure and / or the flow rate.
The negative pressure is measured between the work area and a reference point to be defined (adjacent rooms) and kept at the set point value by continuous speed control of the electric fan.
The volume flow is measured in the device and kept at the set point value by continuous speed control of the electric fan.
Likewise, a manual control is possible.
A filter sensor (option with connect BASIC) monitors the particle concentration in the exhaust air and triggers an optical and acoustic alarm if a value of 100 particles per liter is permanently exceeded.


2 connect packages
All connect functions are free for 6 months, then for a fee

connect BASIC

Use passive features

- Localisation
- Documentation
- Remote Monitoring

connect PRO

Benefit from active features

All connect BASIC functions, plus ...
- Remote Control
- Remote Maintenance
- Predictive Maintenance
- Particle sensor for filter monitoring



high performance

robust and durable

light weight