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Ductless Fume Hoods Class 2



The ductless filtration fume hoods in the Classic range are ideal for eliminating contaminating gas and/or solid particles/aerosols from the work space simply and efficiently. Safe, efficient and cost-effective, these protect both the user and the environment.

This range is unassembled when delivered so that it can be easily placed in any laboratory (despite narrow corridors, cramped stairways or ones that are difficult to access, etc.), substantially reducing transportation costs.

All the models in the Classic range use the new filtration system, developed and patented by Cruma (Invention Patent), which ensures the contaminating gas, fumes and particles generated inside are retained, thus constantly renewing the air inside the laboratory. The main advantages offered are:

Personnel Safety and Environmental Protection

Apart from completely protecting the person handling the material inside the cabinet, the chemical toxins produced are not released to the outside but remain inside the cabinet thanks to the filtration system formed by a variety of activated carbon filters.

Economic Savings and Easy to Set-Up

No expensive works are necessary to install conduits to extract the gas to the outside which means there are no additional costs and no need to interrupt a laboratory working at full capacity.


These can be used in areas where it is difficult to extract contaminated air, such as the lower floors of buildings, and they can be placed in different locations, which it means that they can be easily relocated if needed.

Energy Savings

Unlike traditional extraction hoods, our fume hoods do not use the air conditioning equipment inside the laboratory, which substantially reduces energy costs. The aspirated air is not expelled outside but recirculated back into the laboratory free from contaminating substances.


Yes, they all fit and are standard.

More information on the new LCD display

  • New size 127x34mm display
  • Air speed continuously monitored
  • Type of filter installed, working hours, expiration date and next revision date
  • Open door warning through electronic photocell
  • Countdown timer
  • Clock and calendar

New features and components

  • Initial air flow cycle adequacy and final purge cycle
  • Fault LED
  • Control of air flow through Microprocessor
  • Activated carbon filters with electronic chip
  • LED illumination

New alarms and scheduled warnings

  • Open door warning
  • Open door in off mode warning
  • 60h of filter use warning
  • Next validation warning
  • Few hours of filter life warning
  • Countdown timer w  arning
  • Expired filter alarm (by hours)
  • Expired filter alarm (by date)
  • Temperature alarm
  • Equipment without filter alarm
  • Low barrier alarm
Control pannel with big size LCD display Cruma Fume Hoods Detail
Filter Saturation Test Cruma Fume Hoods Detail
Hot wire electronical anemometer Cruma Fume Hoods Detail
Open door photocell system Cruma Fume Hoods Detail
LED lighting 900 Lux Cruma Fume Hoods Detail
Ergonomical openings
Openings for introduction of services (electric cables, tubes, etc.) Cruma Fume Hoods Detail
Tempered glass worktop and liquid tray Cruma Fume Hoods Detail
Movilair base with wheels (optional) with tray and interior shelf for easy storage.
Class 2 Filtration System (according to NFX 15-211) Cruma Fume Hoods Detail


But we’re sure you’ll find more.

General chemistry involving small volumes of reagents or chemical compounds at ambient/moderate temperature in all types of laboratories:

  • Research laboratories
  • Quality control laboratories
  • Clinical and hospital laboratories
  • University and school laboratories

…In general, in any kind of laboratory.

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    No need to worry. It’s totally safe.

    The fume hoods in the Classic range were designed to reduce transportation costs, as, once delivered, all you have to do is take them out of their fantastic packaging, assemble them easily in the desired spot, plug them into the mains and get to work. As easy as that, straightforward and hassle-free. What’s more, they can be placed anywhere because they can be dismantled!

    All of the Classic fume hoods use the new filtration system, developed and patented by Cruma (Invention Patent no. 2397598), which protects the operator by retaining the contaminating gas, fumes and particles generated inside, constantly renewing the air inside the laboratory and avoiding leaks that may contaminate the environment.

    Models and Technical Specifications

    A variety of sizes to suit all needs

    Model 670 870 990 1010 1200 1200XL
    Internal Sizes (width/depth/high) 576x563x630 776x566x720 976x566x720 976x566x920 1176x760x780 1176x967x1106
    External Sizes (width/depth/high) 600x600x937 800x600x1037 1000x600x1037 1000x600x1237 1200x800x1097 1200x1000x1422
    Filtration columns 1 1 1 1 1 1
    Filter number 1 a 2 1 a 2 1 a 2 1 a 2 1 a 2 1 a 2
    Fans 1 1 1 1 1 1
    Average volume of treated air/hour 112 m3/h 160 m3/h 160 m3/h 160 m3/h 160 m3/h 160 m3/h
    Average face velocity 0.50 m/s 0.50 m/s 0.50 m/s 0.50 m/s 0.50 m/s 0.50 m/s
    Internal volume of the cabinet 0.202 m3 0.316 m3 0.398 m3 0.508 m3 0.697 m3 1.258 m3
    Renewals inside the cabinet/min. 9.2 m/s 8.5 m/s 6.8 m/s 5.3 m/s 3.9 m/s 2.1 m/s
    Total electrical power consumption 57 W 57 W 60 W 60 W 60 W 60 W
    Voltage-Frequency 110-220 V / 50-60 Hz 110-220 V / 50-60 Hz 110-220 V / 50-60 Hz 110-220 V / 50-60 Hz 110-220 V / 50-60 Hz 110-220 V / 50-60 Hz
    LED light intensity 1300 lx / LED 18 W 1100 lx / LED 18 W 1100 lx / LED 18 W 825 lx / LED 18 W 800 lx / LED 18 W 800 lx / LED 18 W
    UV Lamp
    Noise Level 55 ± 3 dB 55 ± 3 dB 58 ± 3 dB 58 ± 3 dB 58 ± 3 dB 58 ± 3 dB
    Weight 58 Kg 77 Kg 90 Kg 95 Kg 118 Kg 123 Kg
    Packaging volume 0.33 m3 0.43 m3 0.52 m3 0.52 m3 0.65 m3 0.65 m3

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      Serial Equipment

      Full Equip Cabinets

      Equipment Description
      Electronic circuit with large format LCD screen Security levels: level 1 for users and level 2 for maintenance users
      Electronic anemometer device Electronic sensor monitoring continuously air face velocity
      Photocell sensor device for open door detection Electric device with open door alarm
      Electronic control device for filters replacement The filters incorporate a microchip with miniUSB connection that identifies the type of filter installed, the expiry date and the serial no.
      Illumination 96 LED Tube high light intensity and low power consumption – 16 Watts / 700 Lux
      Sampling system to analize the filtered air at the exhaust To detect the level of filter saturation
      60 hours alarm Countdown timer according to French NF X 15-211:2009
      Electronic cronometre with audible alarm To program the work inside the fume hood
      Clock and calendar Display of date and time
      Working surface 1 Spill retention tray (2-10 liters) with working surface in white tempered glass
      G4 Prefilter G4 class pre-filtering blanket of synthetic biofibres  (according to EN-779) for the retention of atmospheric dust
      Cable entry holes (2) Access to the rear wall for cables and / or services entry
      Chemical Listing Guide of retained products by type of filter
      Warranty 7 años

      Optional Equipamient

      Details that matter

      Equipment Description
      Movilair Stand with wheels and internal tray in Epoxy coated steel
      Tubular steel stand Support stand in Epoxy coated steel
      Working surface 2 Spill retention tray (2-10 liters) with working surface in phenolic resin
      Working surface 3 Spill retention tray (2-10 liters) with working surface in inox steel
      Transparent rear back pannel Transparent polymethylmethacrylate rear pannel 8 mm thick (light transmission of 93%). Ideal for teaching sessions.
      Voltage / Frequency 125 V / 50 Hz
      Filter test kit Dräger pump with reactive colorimetric tubes (pack 10u)

      Cruma Filters

      A wide range to ensure the air remains clean and health is unaffected

      Filter Types Description
      Type A For organic vapors such as ketones, ethers, alcohols, xylenes… Eventually it can be used for inorganic acids, but only if used in small quantities because this activated carbon is not impregnated and the excess of acid vapors could saturate it quickly.
      Type BE For inorganic acid vapors as H2SO4, HCl, HNO3, and volatile sulfur compounds such as H2S, SO3, … It can be used with organic vapors because the activated carbon incorporates impregnation of metal compounds and neutralizing salts. It is also suitable to filter organic and inorganic compounds when they are in similar proportions.
      Type F For formaldehyde vapors and derivatives; also good for other organic compounds. Carbon impregnated with Cu leads, so that it should never be used with inorganic acid vapors.
      Type K For NH3 vapors and amines; also good for other organic compounds. Carbon with metal salt complexes impregnation.
      Type ABEK Mixed type to be used when the ratios between organic, inorganic and NH3/amines are similar.
      Type D HEPA H-14 filter (High Efficiency Particulate Air, according to EN-1822: 1998) for filtering dust and smoke particles.

      Modular filtration column
      for gases and particles  (according to NFX 15-211:2009)

      CLASS 2 CLASS 1
      Type G Handling of liquid compounds/products columnas-filtrantes-tipo-g Type 2G Liquid compounds/products handling with security molecular filter columnas-filtrantes-tipo-2g
      Type GS Handling of liquid and particles compounds/products columnas-filtrantes-tipo-gs Type 2GS Liquid and particles compounds/products handling with molecular security filter columnas-filtrantes-tipo-2gs
      Type 2GD Handling of liquid compounds in clean room with molecular security filter columnas-filtrantes-tipo-2gd

      ventilador Fan  molecula-filter Molecular Filter  particle-filter HEPA-H14 Filter

      * To view the technical sheets of our filters, please contact Cruma sales department at
      -It is the user’s responsibility to correctly manage the waste generated from filters based on the use given to them and according to the applicable requirements.
      -The supply of spare parts is guaranteed during a period of 10 years

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