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.
Drymonema is a very rare species, very similar to the largest jellyfish of the world, the northern Cyanea capillata with even 2 m of umbrellar diameter. Also Drymonema can reach a remarkable size: it can be even 1 m in diameter and it is the largest jellyfish of the Mediterranean Sea.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.