mana-tura are pellets (stone) that can make silver ion water with an antibacterial, deodorizing effect by simply adding to tap water
Put a pellet in a bottle.
Put water in the bottle.
Ready in 1 hour
※Be sure to use with the pellet left in the bottle.
Silver ion water made from Mana-Tura does not contain any chemicals at all and is safe even to drink. It is also great value for money compared with commercial antibacterial deodorants because it can make silver ionized water repeatedly with a single pellet.

1 pellet can make 200L of Silver Ion water

800 bottles worth of 250ml bottles

one bottle about 10 yen
Mana-Tura makes both Silver Ions (Ag+) and OH radicals (OH). Both of these have an antibacterial and deodorizing effect by acting directly on bacteria and viruses.
Silver Ions are 10 times the antibacterial power of chlorine. The figure shows the results 24 hours after spraying and not spraying various bacteria with silver ion water made with Mana-Tura. The bacteria sprayed with silver ion water has completely gone.
| Coliform bacillus | Pseudomonas aeruginosa | Staphylococcus aureus | |
|---|---|---|---|
| When not sprayed with Silver Ion water | ![]() |
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| When sprayed with Silver Ion water | ![]() |
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Bacteria is the cause of bad smells of sweat, socks, pillow covers and such. Silver ions work directly on bacteria that are the root of smells, preventing their activity (inactivated). The figure on the right show results when measuring the deodorizing rate after 30 minutes of putting silver ion water on bad smells. A deodorizing effect of over 90% was seen with acetic acid, isovaleric acid and formaldehyde.