Understanding HEPA Air Filters

Understanding HEPA Air Filters

HEPA is an acronym for highly efficient particulate air which is most commonly seen in the air purification industry in the form of air purification filters. These are used to clean and extract harmful particulates from the surrounding environment.

To stay true to their name, HEPA filters must be highly efficient. This is achieved by using sheet layers of randomly arranged glass fibres so that the particulates are captured effectively. An irregular lattice is used to allow only the air to pass through. 

HEPA filters capture and remove particles through the basic process of straining and direct impact, but also through more complex mechanisms known as interception and diffusion, which are designed to capture a greater percentage of particles.

But which type of HEPA filter should I be looking at to truly clean my workplace? 

Here at ViroAir, we believe that the best HEPA rating to go for is a HEPA 13 filter. Due to its 99.95% effectiveness rate,  particulates can be intercepted as as small as 0.1 to 0.3 microns. The chart below shows each HEPA efficiency rate to the correct MPPS (Most Penetrating Particle Size).

Classification Percentage Efficiency MPPS
E10 ≥85
E11 ≥95
E12 ≥99.5
H13 ≥99.95
H14 ≥99.995

 

To put it into perspective, a human hair is between 80 and 100 microns in diameter. Pollen is even bigger at around 100 to 300 microns whereas viruses tend to vary between 0.1 and 0.5 microns. 

Due to the advanced diffusion mechanisms within the HEPA 13 filters, virus particles under 0.2 micros, such as corona virus, are effectively captured and removed from the air. 

 

If you are looking for further advice regarding air purifiers or filters, please feel free to give our team a call or email at any time via:

0121 456 7808 or sales@viroair.co.uk


ViroAir® Plus Professional Air Purification Unit with HEPA-13 & UV Filtration
ViroAir® Plus Professional Air Purification Unit with HEPA-13 & UV Filtration
ViroAir® Plus Professional Air Purification Unit with HEPA-13 & UV Filtration
ViroAir® Plus Professional Air Purification Unit with HEPA-13 & UV Filtration
ViroAir® Plus Professional Air Purification Unit with HEPA-13 & UV Filtration
ViroAir® Plus Professional Air Purification Unit with HEPA-13 & UV Filtration
ViroAir® Plus Professional Air Purification Unit with HEPA-13 & UV Filtration
ViroAir® Plus Professional Air Purification Unit with HEPA-13 & UV Filtration
ViroAir® Plus Professional Air Purification Unit with HEPA-13 & UV Filtration

ViroAir® Plus Professional Air Purification Unit with HEPA-13 & UV Filtration

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Regular price £2,394.00 incl. VAT | £1,995.00 ex. VAT
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Are you doing everything you can to keep your employees safe on the return to the workplace? 

With up to 99% effectivity, the ViroAir® Plus Air Purifier, the latest advancement in air purification technology, comes equipped with a HEPA filter (high-efficiency particulate air filter) and a UV lamp for sterilisation to keep yourself and your colleagues around you breathing clean, disinfected air.

The ViroAir® Plus eliminates harmful contaminants and pathogens in the immediate environment through its 4 stage filtration process, capable of processing and purifying up to 750 cubic meters of air in one hour. 

The Process

After the main vent filter has extracted dust and other large particles, UV-C Lamp Disinfectant Technology is used to expose viruses to UV radiation, helping to deactivate viruses and other harmful pathogens. 

The air is then passed through into the highly absorbent Activated Carbon Filtration Tray. Microbes and other pathogens then stick to the filtration device and become trapped, thanks to its large surface area. 

Finally, the High-Efficiency Particulate Air Filter (HEPA-13) helps to pick up any last remaining contaminants as small as 0.1 to 0.3 microns. 

 Key Features
  • 4 stage air filtration
  • PM 2.5 air quality digital display
  • 4 Adjustable fan speeds  
  • Adjustable filter volume for a quieter office
  • 4 air quality colour indicators (Blue, light purple, dark purple and red) 
  • Indicators to show: UV-Disinfection, Wi-Fi connectivity, Light visibility and Humidification
  • Sleep mode
  • Anion disinfection mode
  • Filter operating status
  • Wi-Fi connect button
  • Fan speed control button
  • Child lock
  • Timer selection (2h, 4h, 8h, 12h)
  • Humidification mode ( When button shows red, water is needed)
  • High Voltage protection warning
  • Filter cleaning/reset reminder
Details

The ViroAir Plus is equipped with a quad filter system to provide the highest quality air purification to keep you, your customers and colleagues breathing clean, bacteria free air all day.

Air is drawn in through an intake at the bottom of the unit and then through the pre-filter where larger particles such as dust are filtered out.

Next, the air is filtered through the UV-C Lamp chamber which is then hit by a strong UV-C lamp. This helps to kill all bacteria and viruses through UV radiation.

 A H13 HEPA (High-efficiency particulate absorbing) is used to further strain the air and has been proven to remove up to 99.97% of all particulates as small as 0.3 microns.

Finally, there is an activated carbon filter which is highly efficient at breaking down formaldehyde, benzene, TVOC, ammonia, smoke and other strong odors and poisonous gases. This type of filter is better than mechanical filter options as the activated carbon can absorb particulates and traps them inside the unit. 

The control panel is the key to making your unit best suited to your work space. With four fan speeds for controllable filtration, a humidifier for better staff health, toggleable brightness and timer for efficient energy usage and optional UV-C lamp cleansing for extra defense against airborne contaminants. 

Specs

Download ViroAir Plus Air Purification Unit Spec Sheet 

What's In the Box
  • ViroAir Plus Air Purification Unit
  • Power Cord (UK Plug)
  • 1x Pre Filter
  • 1x HEPA Filter
  • 1x UV Lamp Filter
  • 1x Activated Carbon Filter
  • 1x Remote
  • 1xOperating Manual
  • 1x Warranty Tag
  • 1x Warranty Card 

Filters

This product has replaceable filters which will need to be changed when they have been active for a certain amount of time. 

Activated Carbon Filter:

It is recommended that this component is replaced annually for best filtration output.

HEPA-13 Filter:

It is recommended that this component is replaced every 2000 hours however this is subjective to the cleanliness of the surrounding environment and are likely to get more hours from each filter.

UV-C Lamp:

It is recommended that this component is replaced every 8000 hours