R3 – Research, Reviews, Recommendations
    R3 – Research, Reviews, Recommendations
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    R3 – Research, Reviews, Recommendations

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    Home & CleaningAir PurifierAir Purifier
    Air Purifier

    KOIOS

    Air Purifier

    7.4R3 Score / 10
    RecommendedGood, with trade-offs worth knowing.
    Safety
    7.80% weight
    Efficacy
    6.80% weight
    Usability
    6.10% weight

    $49.99

    Buy on Amazon

    We may earn a commission. It doesn't affect our scores.

    The bottom line

    What the product listing won't tell you

    Buy it if

    • <strong>Safety</strong> score 7.8/10 — above average for this category

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    Air Purifier

    KOIOS

    Air Purifier

    $49.99
    Buy on Amazon
    Air Purifier

    KOIOS

    Air Purifier

    $49.99Buy on Amazon

    How we scored it

    0 criteria — open any layer to see exactly what we found

    How we scored it

    0 criteria — open any layer to see exactly what we found

    7.8

    Safety

    Good

    6.8

    Efficacy

    Fair

    6.1

    Usability

    Fair

    7.8

    Safety

    Good

    6.8

    Efficacy

    Fair

    6.1

    Usability

    Fair

    Read the full methodology
    Read the full methodology

    Where to buy

    Verified retailer — current pricing

    Starting price

    $49.99

    R3 approved retailer Score unaffected by purchase
    Buy on Amazon

    We earn a small commission on purchases. It never influences our scores — R3 is funded by readers, not brands.