Allens Industrial Products Home
SMH5000 Negative Pressure Unit

SMH5000 Negative Pressure Unit

$5824.50(inc GST)


SMH's range of air filtration units also known as air scrubbers or negative pressure units (NPUs) provides mobile filtered air extraction to control environments where airborne contaminants are a potential risk to human health, such as in pharmaceutical, biomedical, demolition and remediation work. They are designed to create negative pressure within a portable decontamination unit facility or working enclosure. All SMH NPUs comply with BS EN 8520-2:2009.

Filtering contaminated air is critical to controlling the spread of hazardous substances. SMHs dust and air filtration Negative Pressure Units (NPUs) are designed to tackle a wide range of contaminants.

The NPU 5000+ has a totally redesigned body. Weldfree, it is easy to clean and the polyethylene case is light and yet still sturdy enough to withstand daily use on site.

Its powerful motors provide a huge nominal airflow of 5500m3/hr for what is still a relatively compact size and lightweight. With particle filtration of 99.995% at 0.3 microns, the HEPA (High Efficiency Particulate Air) filter can clean contaminated air of potentially harmful particles such as asbestos, bacteria and some viruses.


  • Case: Moulded polyethylene and Weldfree
  • Airflow: 5200 m3/hr (average)
  • Noise: <86 dbA when measured at 1m
  • Electrical: 2 x High capacity motor which runs on single phase 220/240v-50Hz supply
  • Prefilter: 1 x prefilter (596x596x98mm)
  • Hepa: 1 x H14 HEPA filter with an efficiency of 99.995% at 0.3 microns (610x610x292mm)
  • Weight: 65KG
  • The units are manufactured at an ISO 9001 quality assured site
  • Product Code: SMH5000

    Click Image to Enlarge