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Interfiltre washable air filter

An efficient air filtration solution to ensure good air quality while reducing waste

July 2020
Gallery Interfiltre washable air filter 1
Gallery Interfiltre washable air filter 1


Interfiltre's washable air filter provides a reusable and long-life solution for buildings and factories, avoiding the need for single-use, disposal air filters and providing clean air.

Many companies and consumers use low cost air filtration systems reliant on disposable filters. This not only creates large quantities of waste, but also creates more work and costs for companies, with staff having to order and manage stock and frequently replace and dispose of air filters. The washable PRP3 Interfiltre air filter seeks to solve this problem by providing a long-life product which delivers clean air without the waste. The PRP3 filter can be rewashed and has a 10 year life span. The filter is easy to clean and can be washed as frequently as necessary. All that is required is a small quantity of water to wash the filter, leaving no waste. The PRP3 filter offers an economical and efficient solution for buildings and factories to reduce waste and deliver clean air.

Label Date July 22, 2020
From France
Maturity stage Medium and large scale commercialization

The environmental benefits

  • Around 60% lower CO2 emissions than mainstream alternative
  • 30% less energy use compared to mainstream alternative
  • Filter can be reused and washed around 150 times (ten year lifespan)

The Financial benefits

  • Return On Investment in around 18 months
  • 50% lower costs per year compared to mainstream alternative disposal filters

Activity Region

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  • Headquarters
  • Activity

Company Profile


Interfiltre manufactures washable air filtration units ( 150 times) to produce less waste and use less raw materials.

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Headquarters 14140 Lisores, France
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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator INTERFILTRE has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.