Overview
  • How are reviewers describing this item?
    size, fit, through, comfortable and good.
  • Our engine has profiled the reviewer patterns and has determined that there is minimal deception involved.
  • Our engine has detected that Amazon has altered, modified or removed reviews from this listing. We approximate total reviews altered up to 95.
  • Previous analysis of this listing was an C grade.
  • Our engine has discovered that over 90% high quality reviews are present.
  • This product had a total of 641 reviews as of our last analysis date on May 13 2019.
Details

BETA

Most positive reviewquestion

Great quality product, fits well, and has prevented me from getting any sinus infections during pollen seasons for over a year ...  Read More

Least positive reviewquestion

Not enough review data to provide meaningful insight.

Most authentic reviewquestion

Not enough review data to provide meaningful insight.

Least authentic reviewquestion

Not enough review data to provide meaningful insight.


Helpful Insights

BETA

    Posted by a reviewer on Amazon

    I received my first refills today and accidentally ordered the s and i have the ll r.


    Posted by a reviewer on Amazon

    But i think the small would be too small.


    Posted by a reviewer on Amazon

    The aqi averaged around 150 and sometimes was as bad as 198 and i would start with a white filter that gradually turned darker and darker until it was a dark grey by the 3rd day of almost all day use.


    Posted by a reviewer on Amazon

    In the photo attached, the used filter on the left was after 3 days of just wearing it on a 2.


    Posted by a reviewer on Amazon

    I am now also wearing them on long haul flights in hopes they will give me even more protection from airborne illnesses, though i have no scientific backing as to whether this will actually help.


    Posted by a reviewer on Amazon

    There was no size guide available for round type nostril so i bought the 4 size kit.


    Posted by a reviewer on Amazon

    Double negative intended because they're not altogther comfortable either.


    Posted by a reviewer on Amazon

    The defense nasal air filter grabs all the dust and steel dust.

Review Count History
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