I'm the OP. Thanks so much for your responses.
We did have concerns about this, and very thankful that we held off and asked for opinions here.
We decided to forego this - the technology (snake oil???) and effects is questionable - esp due to the cost. BTW, $3300.
Decided to get a HEPA air cleaner/purifier unit for a large room, bedroom. Specifically to provide clean filtered air for sleeping. Ordered one on Amazon...
Thx again folks.
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