CimeXa is diatomaceous earth turned up to 11. Not as cheap, and probably more hazardous to breathe; but works great.
That and Crossfire concentrate seem to be the best treatments I've found if you aren't able to bring in industrial heaters or ozone generators. Luckily we found them before moving in. But 6 months later I'm still paranoid and examining every little bug I see.
They're correct. Ozone generators do help with bedbug infestations, ~~I'll try to find the paper I read.~~ https://pubmed.ncbi.nlm.nih.gov/32302460/ And another: https://ag.purdue.edu/department/entm/_docs/493_capstone/feston-capstone-summary.pdf
I used ozone generators as part of a bed bug treatment, along with CimeXa and Crossfire as I recommended in another reply. And it was effective. But I was lucky and found them before moving in, so I was able to seal the house up and go nuclear.
You don't really want to run an ozone generator in an occupied house. Even if you seal a room up, it will leak out and probably not good to breathe. But it has the upside of killing just about anything living, so it will kill both bedbugs and their eggs given a high enough concentration and long enough time.
I bought one of these (not an affiliate link) and it was overkill.