As well as looking sharp, the bristles ionize and filter with each inhalation.-- FlyingToaster, Mar 08 2016 How do you reinforce steel ?-- normzone, Mar 08 2016 By using capital letters?-- whatrock, Mar 09 2016 ionized air is not healthy. Its only benefit is making dust stick to surfaces so you don't have to deal with any of the dust you've been evolving to deal with this past few million years.-- Voice, Mar 09 2016 "How do you reinforce steel? (Apart from, of course, repeating to it 'You're steel. Yes, you are')" -- AbsintheWithoutLeave, commenting on a Padded Room made out of reinforced steel.-- normzone, Mar 09 2016 random, halfbakery