Hepa Tower

Highly efficient air purification: HANSA HEPA-Tower 400

 

The most important aspects at a glance

  • Air recirculation unit (hygienic design)
  • Housing and fitted parts coated with sheet steel RAL 9002 or anthracite
  • Air capacity 400 m3/h
  • Selectable functions: “Silent” (200 m3/h), “Normal” (400 m3/h) and “Boost” (maximum speed)
  • Display: Operation, malfunction, filter change
  • Automatically regulates to 200/400 m3/h air capacity, even when filter contamination increases
  • Pre-filter ePM10-55% (filters at least 55% of particles with 10 microns diameter)
  • Main filter H14 (filters 99.995% of aerosols between 0.1 and 0.3 microns)
  • High-efficiency fan with EC drive, maximum power consumption at final filter pressure: 170 watts
  • Loudness: 35/47 dB(A) at 1.2 m height (~head height in sitting position) and 1 m distance to unit (Silent/ Normal mode)
  • Floor or wall mounting
  • Height: 1.5 m, width: 0.42 m, depth: 0.35 m
  • Construction: Intake at bottom, pre-filter, silencer, fan, H14 filter, silencer, discharge at top

Price: €1850 (plus statutory VAT)

The HEPA Tower 400 is available in ouronline store.


You can also find out about our HEPA Tower 1200!

Highly efficient air purification unit: HANSA HEPA-Tower 1200

 

The most important aspects at a glance

  • Recirculating air purification unit
  • Housing and fitted parts coated with sheet steel RAL 9002 (grey white), anthracite or red.
  • Air capacity 1200 m3/h
  • Selectable functions: “Silent” (800 m3/h), “Normal” (1200 m3/h) and “Boost” (maximum speed)
  • Display: Operation, malfunction, filter change
  • Automatically regulates to 800/1200 m3/h air capacity, even when filter contamination increases
  • Pre-filter ePM10-55% (filters at least 55% of particles with 10 microns diameter)
  • Main filter H14 (filters 99.995% of aerosols between 0.1 and 0.3 microns)
  • High-efficiency fan with EC drive, maximum power consumption at a final filter of pressure 500 watts, at design point 110 watts.
  • Loudness: 35/47 dB(A) at 1.2 m height (~head height in sitting position) and 1 m distance to unit (Silent/ Normal mode)
  • Unit on casters with wall mounting
  • Height: 2.14 m, width: 0.7 m, depth: 0.67 m (hood removable, height with casters is then 1.965 m)
  • Construction: Suction at bottom, pre-filter, H14 filter, fan, silencer, discharge at top

Price: €2995 (plus statutory VAT)

The HEPA Tower 1200 is available in ouronline store.


You can also find out about our HEPA Tower 400!

The most important aspects in detail:

 

Hygienic design: HANSA has been building air handling units for hospitals for decades. Our experience in this field has been incorporated into our equipment design. HANSA hygienic design air handling units are tested by a hygiene institute at regular intervals. The fact that our devices meet hygiene-relevant requirements has been confirmed with a corresponding certificate. The HEPA tower is also manufactured in a corresponding manner.


Air flow rate: How high must the air flow rate be in a room to significantly reduce the risk of infection? There is (unfortunately) no clear-cut answer to this question. It depends on the geometry of the room, the number of people, the number of viruses and bacteria that are actually introduced into a room, and so on. To simplify the selection, the consensus at the moment is that an air exchange rate of 5 to 6-fold should be achieved. This means a room volume of 66 to 80 m3 for the HEPA tower with 400 m3/h. Or a floor area of 22 to 26 m2 for a room height of 3 m.  Ideal for waiting rooms in doctors' practices, for example. Classrooms typically have a room volume of around 210 m3. Three HEPA Tower 400s or one HEPA Tower 1200 must be installed here. An interesting link in this respect: COVID-19 Estimating the risk of infection by aerosols with a calculation tool from TU Berlin

Main filter: The main component of the device is the H14 filter. These filters are also used in hospital equipment for air treatment in the operating theatre to provide germ-free air. 99.995% of aerosols with a diameter between 0.1 and 0.3 microns are filtered out with these filters. The coronavirus is, consequently, also separated. Now you may wonder what happens to the viruses in the filter? Even in the filter, the infectiousness of the viruses decreases rapidly. About half of the viruses are no longer infectious after just one hour [SZ Online 20.09.2020: “Was Luftfilter gegen das Virus ausrichten können” (“What air filters can do to the virus”)].​​​​​​​

EC drive: The EC drive is the most efficient type for small fans, especially in the partial load range. We use a fan of the latest design – and with the highest possible efficiency class (IE4) – in our HEPA tower.​​​​​​​

Final filter pressure: When a filter separates particles from the air, these gradually clog the filter. As a result, the pressure drop across the filter then also increases over time. The manufacturer defines a final pressure for each filter up to which the filter can be operated without loss of separation efficiency. The filter must be replaced after this. The hygiene filter is an expensive filter and is therefore protected in our unit by a pre-filter that already removes the larger particles from the air. When the final filter pressure is achieved, a lamp on the unit door illuminates and the operator is informed and can replace the filter – or, even better, have it replaced by one of our​​​​​​​ service technicians .