Industrial Scientific Corp interview questions

The interview process was haphazard as I got ghosted by 2 of their recruiters. When the second recruiter set up the interview I was emailed at 11pm on a Friday asking for a Monday or Tuesday interview. The actual interview was the least frustrating part of the process. I felt lead on that I was going to get the position. Afterwards I emailed a thank you with no response, and then after 2 weeks I emailed asking if I was still in the candidate pool with no response. There were lots of red flags throughout the process, they were disrespectful of my time, and in my opinion outright rude to not even confirm if I was still being considered.