Boost your breathing power Ultrabreathe is the safe, effective, easy-to-use respiratory trainer that improves the strength of your lungs. Inhale through Ultrabreathe for a few minutes twice a day in a simple breathing pattern. As your lungs get stronger, add resistance to your training with just a twist of a knob. No electricity or batteries needed. Safe for those with asthma, bronchitis or emphysema. Instructions included.