Air Purifier vs Ventilation

Photo Engineer said:

A comment about ozone and air 'fresheners'.

Ozone is a known carcinogen and a poison. It can be tolerated at low levels just as hydrogen sulfide or even cyanide can be and it is just like many other toxic chemicals or carcinogens in that we just don't know how bad it is.

Therefore, my comment was fact but not necessarily important unless the person is very concerned about exposure to any carcinogen, especially one taken into the lungs as is cigarette smoke.

So, just take that as a comment.

As for the air filters, people can be convinced that a placebo has cured them, when in fact it has not. I'll take the Consumer Reports study over subjective evaluation and I'll take a good exhaust fan with a charcoal scrubber and precipitron over anything else.

That method, used at Kodak and other chemical companies, sweeps filtered fresh air into the lab and then removes virtually everything from the stale air being swept out including dust and chemical vapors.

PE

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