To Be Green

Recycling masks will give your Christmas tree a whole new life. This Christmas, close the cycle.

We have joined To Be Green, a spin-off from Minho University, to promote the recycling and valuation of used disposable masks by giving them a new life, extending their use.


To Be Green aims at reducing the environmental impact associated to the use of disposable masks when fighting the Covid-19 pandemics. These masks are usually thrown into the general waste containers.

The masks used are recycled and converted into resistant polypropylene polymeric structures, useful for multiple purposes.

All these waste collections, transport and processing are made according to the strictest safety conditions to ensure the non-contamination of the virus.

The new products that are created as of used disposable masks are transformed into small Christmas decorations such as sleds, stars, trees, and snowflakes to decorate your Christmas tree.

The 4 Christmas decorations packs are available in 50 CTT Post offices throughout  the country,  but also online

Solidary Project

This project is also solidary:

  • The boxes, made from recycled cardboard, are produced by Centro Juvenil de São José de Guimarães, an institution that helps children in risk of social exclusion.
  • For each pack of 4 decorations sold, 2€ are to help Cáritas Diocesana de Viseu


By taking part in this initiative, you are contributing to the promotion of a more responsible consumption and to the development of a better life for these young children.

Contribute, and this Christmas give your home a more sustainable glow!

CTT Post offices Locality
Post office Laranjeiro Almada
Post office Amadora Amadora
Post office Barcelos Barcelos
Post office Avenida Braga
Post office Maximinos  Braga
Post office Agualva - Cacém Cacém
Post office Caldas Calda da Rainha
Post office Caldas das Taipas Caldas Taipas
Post office Fernão Magalhães Coimbra
Post office Covilhã Covilhã
Post office Ermesinde Ermesinde
Post office Espinho Espinho
Post office Fafe Fafe
Post office Faro Faro
Post office Felgueiras Felgueiras
Post office Zarco Funchal
Post office Gondomar Gondomar
Post office Lameiras Guimarães
Post office Benfica Lisboa
Post office Cabo ruivo Lisboa
Post office Lumiar Lisboa
Post office Oriente Lisboa
Post office Restauradores Lisboa
Post office Maia Maia
Post office Marrazes Marrazes
Post office Odivelas Odivelas
Post office Paços Ferreira Passos de Ferreira
Post office Penafiel Penafiel
Post office Pombal Pombal
Post office Vasco da Gama Ponta Delgada
Post office Ponte de Lima Ponte Lima
Post office Teixeira Gomes Portimão
Post office Boavista Porto
Post office Bonfim Porto
Post office Eça de Queiroz Porto
Post office Marquês De Pombal Porto
Post office Palácio dos Correios Porto
Post office Santarém Santarém
Post office Santo Tirso Santo Tirso
Post office São João da Madeira São João da Madeira
Post office Paivas Seixal
Post office Bonfim Setúbal
Post office Torres Vedras Torres Vedras
Post office Valongo Valongo
Post office Viana do Castelo Viana do Castelo
Post office Vila Nova de Famalicão Vila Nova de Famalicão
Post office Vila Nova de Gaia Vila Nova de Gaia
Post office Vila Real Vila Real
Post office Abraveses Viseu
Post office Viseu Viseu