Concentrations above 5ppm in air can cause serious problems. You might want to look at this paper, if only to see that, commercially, HCl solutions have another name which can be misleading, Muriatic Acid. What happens if muriatic acid fumes are inhaled?
Answer: A palapa is a thatched-roof, open-sided structure (see palapa photo). The material to cover the roof of a palapa typically consists of dried and woven palm-tree leaves. A palapa is sometimes referred to as a grass or tiki hut.
The Hawaiian meaning of the name Palapala is Document, diploma, writing, literature. Also the Hawaiianization of Barbara. People with the name Palapala have a deep inner desire for order and physical creativity, and want to be involved in conventional, safe activities.