Does anyone know where I can purchase those little swabs that look like cotton buds wherby I can test to see if there is any harmful bacteria around kitchen sinks, toilets, food preparation areas etc.
You run the swab over the surface then put it in a solution that changes colour depending how good/bad the surface area is for harmful bacteria.
You run the swab over the surface then put it in a solution that changes colour depending how good/bad the surface area is for harmful bacteria.