A tube-like gadget called a spacer can help kids or people with trouble breathing use an HFA more easily. Dry powder inhalers (DPIs) require you to breathe in quickly and deeply. That can make them hard to use during an asthma attack when you canât fully catch a deep breath.
Some jellyfish are clear and can look like a plastic bag in the water. Others are in vibrant colors such as pink, yellow, blue, and purple, and often are luminescent.
Species of Jellyfish. Most people think that all gelatinous,swimming marine animal encountered at the sea are jellyfish and moreover that they all sting. But not all jellyfish are stinging; many are harmless to humans, but it is always best to avoid touching them.Here is a mini-guide to the main jellyfish species and the most recognizable gelatinous plankton species prevalent in our seas.ost people think that all gelatinous,swimming marine animal encountered at the sea are jellyfish and moreover that they all sting. But not all jellyfish are stinging; many are harmless to humans, but it is always best to avoid touching them.