Check Indoor Air Quality for COPD

5 star (1) 
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Timh (Ky) on 08/14/2017:
5 out of 5 stars

For those who are not having success with COPD remedies:

Looks like you need to back up and try preventing any possible causes to your copd like bad indoor air. Additional air purification will help. I use a neg ion/ozone unit purchased from EBay in addition to a Honeywell HEPA Type.

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