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Heylo Luftreiniger HL 400
Heylo HL 400 air cleaner

HL 400

Virus air cleaner

The HL 400 air cleaner is a mobile air filter device. Air is sucked in from the environment and passed through a 7-stage filter system. The designer air cleaner filters viruses, bacteria, odors, pollen and dust. With the help of the filter system, the room air is filtered and pollutants are incorporated. The standard filter box consists of a pre-filter, cold catalyst filter, activated carbon filter, antibacterial filter, main filter H10 (according to EN 1822), sterilizing UV-A light and ionization.


What do air filters do?

Viruses, bacteria and other germs are not only found on surfaces, but also in the air, especially indoors. Do people come together in rooms such as offices, classrooms, restaurants or fitness studios , aerosols and thus viruses float through the room. These droplets can float in the air for hours and lead to infection even when the infected person is no longer in the room.

An air purifier reduces the concentration of viruses and germs and of course other pollutants such as dust, pollen and allergens that are in the indoor air. In this way, they can also help to significantly reduce the concentration of the current coronavirus in the room air.

Filtration system stages:

1st stage:

An aluminium filter is used as a pre-filter. The pre-filter filters coarse dust particles larger than 5 micrometres, such as house dust, flakes, pollen. The filter can be washed out with water and can therefore be used several times. HEYLO recommends replacing the pre-filter annually.

2nd + 3rd stage:

Cold catalyst filter
The catalytic decomposition reaction of the cold catalyst does not require UV rays, high temperatures or high pressure. Under normal temperature conditions, the catalytic reaction can remove formaldehyde, benzene, xylene, TVOC and other harmful gases. The reaction creates water and carbon dioxide. It does not lead to secondary pollution. It is a safe and environmentally friendly product to date, suitable for a healthy home. During the catalytic reaction, the cold catalyst itself is not directly involved in the reaction. The functionality does not change and is not lost. For this reason, a lifespan of around 5 years can be assumed.

Effective formaldehyde filter
The formaldehyde filter with activated carbon removes unwanted odours, gases and substances from the air. It also cleans the air of harmful formaldehyde in a very short time. The substances are absorbed by the activated carbon and when the filter is saturated, it must be replaced. HEYLO recommends this every 6 months. In the case of strong odour pollution, such as cigarette smoke, a more frequent change can also be useful.

4th + 5th stage:

Antibacterial cotton filter
The antibacterial filter is a precision filter that filters particles with a diameter of 5 microns. The special filter material is also provided with an antibacterial agent that can effectively kill 99% of all bacteria.

Highly efficient EPA filter (particulate filter)
The EPA filter filters airborne germs, smoke and dust particles up to 1 μm in size at a rate of 99% or more. In combination with the multifunctional filter, the EPA filter can filter out microscopic particles larger than 20 nanometres in diameter, including bacterial mould, dust, allergens and some viruses. According to the World Health Organization, the corona virus, bird flu virus, influenza virus and legionella bacteria are larger than 20 nanometres.

6th stage:

Sterilizing UV light
UV sterilization with 365 nanometre UV wavelengths light can kill a large number of airborne bacteria. The UV disinfection lamp is usually used for air, surface and water disinfection. It can purify the air, remove musty smells and produce a limited amount of anions. This makes the air fresh and prevents viruses from spreading in the air or on surfaces.

7th stage:

By applying strong electrical fields, ionizers can charge individual air particles and thus increase the ion concentration in the room air. The charged particles are more reactive and can destroy odour molecules and other pollutants. At the same time, differently charged particles attract and form larger lumps that sink to the ground more quickly and are easier to filter out of the air.

Reduce airborne pathogens

Numerous pathogens are normally found in untreated indoor air. This group includes mould spores, bacteria, animal hair and, above all, house dust allergens (mite excrement, excrement), but also heavy metals, soot and mineral fibres. Large amounts of these suspended matter develop, especially on warm days or during the heating season, and are swirled around with the house dust in the room air. After being absorbed via the respiratory tract, the particles come into contact with our mucous membranes and trigger the known allergy symptoms.

The HEYLO HL 400 air cleaner can significantly reduce the concentration of these suspended matter and gases in order to generate healthy indoor air.

The device is used in the following areas: Private apartments, offices, conference and training rooms, schools and authorities, practices and fitness centres. In all areas where people are, air purifiers can significantly improve the air quality.

The risk of infection can be reduced in areas where pathogens such as bacteria and viruses (such as SARS-CoV-2) may be present. For this we recommend the HL 400 V air cleaner with virus filter box. This also reduces the concentration of viruses and germs. The virus filter box with H14 filter system consists of the G4 pre-filter, activated carbon filter, HEPA H14 main filter (H14 according to EN1822) as well as sterilizing UV-A light and ionization.

Key features

  • Modern designed air cleaner
  • Filters bacteria, viruses, pollen, dust, odours
  • Standard filter box (HL 400) with 7-stage filter system
  • Virus filter box (HL 400 V) with certified H14 filter system
  • Sterilizing UV-A light against bacteria (365 nm)
  • 3-speed fan
  • Automatic air quality control
  • Elegant LED air quality display
  • Whisper-quiet night operation
  • Fragrance function
  • Removable cover for easy filter change
  • Can be controlled via WiFi via the app

Product specifications

Product code


Ventilator-air flow without filters


Air flow with free M-filter F9


Air flow with free H-filter H14


Power consumption


Power supply


Rated current


Protection class


Sound level / 3 m


Product size (l x w x h)

200 x 400 x 600

Net weight


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