air purifiers

  1. BadassBlues

    Negative Ion Health Benefits

    https://pmc.ncbi.nlm.nih.gov/articles/PMC6213340/ Abstract Negative air ions (NAIs) have been discovered for more than 100 years and are widely used for air cleaning. Here, we have carried out a comprehensive reviewing on the effects of NAIs on humans/animals, and microorganisms, and plant...
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