Self-adhesive air filters from the American brand Microppose.
Often used to make mycology lids for liquid culture or grain pot.
0.3 micron filter Heavy duty 3M adhesive Water and oil resistant Resists steam sterilization (121°C)
Filters can become damaged after a certain amount of use. To keep them in good condition, choose cleaning by hand. You can easily replace them with new filters and injection ports.
