My friend johnas claims that Djinn are loving beings and helpful. He says they are all around the world. He told me the term "devil djinn" is what Ifrit and Jaal Djinn are.
He says their are four races of them Marid,Shaitan,Jaal and Ifirt.
Maried are highest and holiest and most powerful of all Djinn.
Shaitan are the weakest but very wise and kind. Johnas's says Shaitan reminds him of Buddhist monks.
Jaal are evil,they are most like humans,in body,they are weak. But for fun they will make a human get cancer or another diseases.
Ifirt are the second most powerful,but are the most evil of all Djinn. They love to cause humans harm. They see humans as low beings and should be dead.
Johnas told me that most everying known about Djinn is false,the only way to know the truth is to ask a Maried Djinn.
What was told to Johnas,by his own Djinn about the Qu'ran, is almost everything in it about Djinn is false. The only few prayers that will get rid of a Djinn is a Buddhist mantra. 'Om Ma Ni Pad Me Hum" must be chanted 108 times.
The Ifirt Djinn names can be spelled like,"Ifirt" "ifrit"
The Jaal Djinn names can be spelled like "Jaal" Gaaal" "Ghul" "Ghule" "Jann" "Jaan", they are many names for Jaal Djinn.
Johnas works with Marid and Shaitan Djinn.