Shroom Supply offers the largest selection of mycological air filtration devices. We carry PTFE syringe filters for making liquid culture lids in both 13mm and 25mm diameters. We also offer the largest selection of synthetic filter discs online. Our synthetic filter discs provide for contaminant-free gas exchange on spawn jar lids. All of our synthetic filter discs have a pore size of 0.3 microns. We carry multiple sizes of filter discs: 29mm (for custom-made spawn jar lids), 70mm (regular mouth jars), 90mm (widemouth jars), 110mm, and 125mm. In addition to our regular synthetic filters, we also carry adhesive synthetic filter disk stickers which are a recent innovation in the mycology field. Please take your time to browse the air filtration devices below.
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