https://www2.purpleair.com/products/list Rau kuv lawv zoo li lub tuam txhab muag khoom thiab lawv daim ntawv qhia yog theem nrab. Lawv txawm tshaj tawm lawv cov khoom ntawm daim ntawv qhia nws tus kheej.

"PurpleAir yog tsim los ntawm qhov zoo tshaj plaws ntawm kev sib koom cov ntaub ntawv thiab los ntawm kev ua qhov no, txhawb cov tib neeg kom muaj kev hloov pauv. Tag nrho cov ntaub ntawv PurpleAir pej xeem muaj rau rub tawm raws li ntau daim ntawv tso cai los ntawm tus kheej, tsis yog rau kev siv nyiaj rau kev kawm thiab kev lag luam siv. Cov ntsiab lus ntawm cov kev siv no yog sib koom ua ke. " (https://community.purpleair.com/t/about-the-data-category/70) - raws li tej zaum 4/5 blocks yuav raug. Tsis zoo li yuav muaj cov trackers lossis kev tshaj tawm hauv lub xaib.