Huma-i (HI-120), Advanced Portable Air Quality Monitor Indoor Outdoor Which Measures VOC and Particle Matter (PM2.5 and PM10) - Sky Blue

I love it; I just put it in my Fjallraven pants' side pocket and it goes everywhere. It has been very instructive to learn just how bad is the air in the New York subway stations! Amazing to think that we have lived so many years exposed to such junk... On the other hand, ignorance is bliss, as they say ;-)

Lo puedes llevar a todos lados ,te cabe en la bolsa!

Zal wel werken, maar geen enkele informatie.ok I found the user manuel.small paper on a small paper and only a hint where to find.Therefore 3 stars for me.

I purchased this after my pulmonologist recommended that I get one for home use. I live in an area that gets heavy smoke from wildfires several times a year as well as occasional general air quality issues , and I also wanted to check my home interior for possible air issues. I have both COPD and asthma, so air quality is a concern.I found that this small unit works great and seems to be accurate when compared with an "official" air quality sensor about 3 blocks from my house. It's easy to use and set up. I keep it handy and fire it up when I start sensing breathing issues to determine if the cause might be environmental or if it's just the usual allergy issues.No problems at all so far. It's not an inexpensive item, but if you need to track air quality for health reasons, it might be a worthwhile investment.

Simple enough display, and works as it should. I did an elementary accuracy test by taking it outside and testing it then looking up the AQ from the local muni airport. It was within 10 points of accuracy and considering distance and wind, I figured this is close enough. I am in northern California and everything is on fire, smoke is heavy in the air and I wanted to know what my indoor IQ was with all of the shelter in place requirements.All in all, you won't be disappointed.