The newest locks dyes contain less irritating ingredients, but top Bathtub Faucets locks designers realized that chlorine in the water could also be a problem. The chlorine content in faucet water is sometimes higher than what you would find in a swimming pool. As the news spread, polished brass shower head filtration became the rage.You may be surprised to learn that water filtration for Shower Heads are not that expensive and they are well worth the investment. The dual or multi-stage units block more substances than the single stage. They may be a little more difficult to find, but they are worth it.