I was searching in google for "airgap wallet"
This is your main problem, google is not your friend if you want to search a service or websites since it's full of phishing and scam sites. Google will not filter/selecting a phishing sites, if they got paid from the fraudsters they will shown it on the top search result. They only shutdown the sites whenever they got many report from people. And then they will repeat it again from the beginning.
Use mozilla or Tor, https only, ad block will protect you from this kind cases.
I've got the first result is an ad of "https[:]//coinomi-wallet.org/";
https[:]//coinomi-wallet.org/
https[:]//coinomi-wallet.shop/
Those phishing sites has no place to gain SEO rating.