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Q&A

GUD mask

Is there any antiviral effect or similar data for the new coronavirus?
Is it bad to put a copper fiber sheet on the inside of the gauze?
Does the rust occur if you continue to use the mask for about a week?
What is the effect of using the GUD mask as an overmask?
How should I do the laundry?
Can the same effect be obtained for mutant strains?

GUD Sheet

Is there any antiviral effect or similar data for the new coronavirus?
Is it necessary to use ultraviolet rays such as sunlight to obtain the effect of photocatalysis?
Is the photocatalyst effective when it is not exposed to UV light in cloudy weather or indoors, or at night?
Is the antibacterial / antiviral effect due to the coating of photocatalyst on copper fiber?
Is it possible to wash and reuse?
What is the applied photocatalyst? Also, can it be dropped by a solvent (alcohol, solvent, detergent, etc.)?
Is there any public evidence regarding antibacterial and antiviral effects?
Is the antibacterial / antiviral effect a function of photocatalyst or a function of copper fiber?
What is the mechanism by which the copper fiber sheet exhibits antibacterial and antiviral effects?
Please tell us about the strength of copper fiber, copper foil coating, and durability of photocatalyst.
Isn't it poisonous if rust (pale blue) occurs on copper? Is it rustproofed?
Is there any evidence of human safety (including allergies, atopy, etc.)?
Does the rust occur if you continue to use the mask for about a week?
Does the smartphone's touch panel respond?
Is alcohol sterilization necessary?
Can the same effect be obtained for mutant strains?
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