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Air Filtration

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 a cellulose filter disc that is a recent innovation in the mycology field (70mm only). Please take your time to browse the air filtration devices below.



Syringe Filter - 0.22 μm - PTFE Sizes: 13 mm & 25 mm

Syringe Filter - 0.22 μm - PTFE
Sizes: 13 mm & 25 mm

Available in both 13mm and 25mm diameters. These autoclavable 0.22 Ám micron syringe filters are made out of a hydrophobic PTFE and are 100%...

$1.75

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Synthetic Filter Disc - 29 mm

Synthetic Filter Disc - 29 mm

These 29 mm heavy-duty filter discs are designed to cover small gas exchange holes on custom-made spawn lids. We had this size disc manufactured to...

$0.65

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Synthetic Filter Disc - 70 mm

Synthetic Filter Disc - 70 mm

These heavy-duty filter discs are designed for regular mouth canning jars (70 mm diameter). They allow for gas exchange while providing 99.97%...

$0.95

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Synthetic Filter Disc - 90 mm

Synthetic Filter Disc - 90 mm

These heavy-duty filter discs are designed for widemouth canning jars (90 mm diameter). They allow for gas exchange while providing 99.97% efficiency...

$1.05

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Synthetic Filter Disc - 110 mm

Synthetic Filter Disc - 110 mm

These heavy-duty filter discs are designed for 1/2 gallon spawn jars with a 110 mm diameter opening. They allow for gas exchange while providing...

$1.45

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Synthetic Filter Disc - 125 mm

Synthetic Filter Disc - 125 mm

These heavy-duty filter discs are designed for gallon-sized spawn jars with a 125 mm opening. This size filter is also popular with mycologists that...

$1.75

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Cellulose Filter Disc - 70 mm

Cellulose Filter Disc - 70 mm

These cellulose filter discs are designed for regular mouth canning jars (70 mm diameter). Many mycologists prefer these cellulose discs over our...

$1.00

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Cellulose Filter Disc - 90 mm

Cellulose Filter Disc - 90 mm

These cellulose filter discs are designed for widemouth canning jars (90 mm diameter). Many mycologists prefer these cellulose discs over our regular...

$1.10

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