Isopropyl alcohol can be an effective knockdown against mites. It is generally safe to use with electrical equipment . You will need: * Isopropyl alcohol * Sprayer with a mist setting Fill the sprayer with isopropyl alcohol. Set the sprayer to 'mist'. Carefully spray keyboard, computer case, etc with a fine mist. Wipe off, or leave the alcohol to dry. Either way the mites die. Do not spray directly on or in electrican components. Turn PC off first. Turn monitors off before spraying back and sides.