Re: Environmental issues
Similar on traditional balled mice. Dust and oils cause grey crusties to gather on the rollers. Easy enough to scrape off with a fingernail, but that just replenishes the oil which results in crusties again in a week. Proper cleaning with alcohol wipes or swabs takes care of the problem for a few months. Washing the mousepad extends that even longer. Kindly asking the user to occasionally wash their hands, especially after lunch... Well good luck with that.