Unlike many bath mats or dish racks, the Dorai Diomat utilizes rapid drying that dissipates moisture and helps to prevent mold. Dorai's Diomat can hold up to 150% of its weight in water, but it needs adequate air flow to rapidly dry. Be sure your products are slightly elevated from the surface (by using the non-slip pad included in the Bath Stone), and let them fully dry out between uses. When overly saturated, prop them up against a wall and when they return to their original light color they are ready to go :) 
Similar to light colored towels or sheets, darker liquids or self tanners can cause some staining if absorbed into the mat. Lighter liquids will not typically stain your mat. In the event that your mat gets stained, it can be cleaned in two ways. For light stains or scuffs, use the included sand paper to gently rub off any marks. For more extreme stains, small amounts of bleach or hydrogen peroxide will do the trick.

We elect not to add dyes or additional substances to the Diatomaceous Earth compound and instead embrace the natural color. Given the lighter tone of the material, there is a risk of staining with dirt or darker liquids. If you spill on it, first, try to dab up any excess liquid before it’s absorbed. For mild stains or scuffs, get your product damp and use sandpaper (150 grit or similar) to gently ‘wet sand’ off any marks. For more extreme stains, applying small amounts of diluted bleach or hydrogen peroxide should do the trick.

Diatomaceous Earth is antimicrobial by its physical properties not through the use of any chemicals or toxins. In its raw state the material attracts and binds bacteria and parasites, causing them to dry out and die.

When compressed into boards it still rapidly evaporates to help prevent mold, but doesn't hold the same antimicrobial properties as the raw material. 

Yes! Dorai products have passed Prop 65 testing and been screened for over 174 substances of very high concern (SVHC) with no detectable substances found. Our products use food grade Diatomaceous Earth, silicone, aluminum and other non-toxic, long-lasting materials.