Sustainability in air filtration is gaining more and more importance, but there is still little standardization on how to assess this topic. The carbon foot print of an air filter is on one hand defined by its raw material, production and transportation. But this portion only makes about 10% of the overall carbon foot print of filtration. Carbon foot print is important to protect our climate, but climate action is only one out of the 17 sustainability goals of the united nations. There are other important goals like good health and well-being, quality education or sustainable cities and communities, just to name some. The aim of air filtration is in very close alliance with most of these goals, hence, air filters by nature are sustainable with their handprint. It is a classical engineering task to maximize the ratio of handprint to footprint. To help engineers to assess this task in a standardised way and to hand them the right tools, CEN and ISO are working on new standards to achieve this goal. In Europe, the European Standardization Organisation (CEN) with its working group (WG) 7 as part of the technical committee (TC) 195 is working on standards to define the content of Environmental Product Declarations (EPD). In parallel, the International Standardisation Organisation (ISO) is working in WG12 within the technical committee (TC) 142 on standards to assess the life cycle cost, energy consumption and the life cycle assessment of air filters.