Particle Mass Concentration Detector with Formaldehyde CO2/PM2.5/PM10 TVOC Temperature/Humidity

Particle Mass Concentration Detector with Formaldehyde CO2/PM2.5/PM10 TVOC Temperature/Humidity

Marsoni

M251S

$167.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Particle Mass Concentration Detector with Formaldehyde CO2/PM2.5/PM10 TVOC Temperature/HumidityThe Sper 900033 Particle Mass Concentration Detector is an advanced, desk or table top device that accurately monitors formaldehyde (H2CO) and other important air quality levels in a closed environment. The large, colorful LCD display indicates multiple indoor air quality parameters with a thoughtfully designed, graphical user interface. The entire display functions as a six color warning system, where colors correspond to actual realtime pollutions

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These socks definitely keep most of the moisture away from my feet, even in wet conditions, which is why I bought them. I am diabetic, though, and the recommendation is to wear socks that don't constrict at any point. These have a tight band around the opening that while it is not uncomfortable on, leaves a mark when I take them off. So far it's been ok, but if you have any kind of swelling in your feet or ankles these would probably not be the best. My foot measures size 8 and I wear size 9 Brooks running shoes. The socks fit me just right but based on the size of the opening and the overall length, I wouldn't think they would fit anyone more than a size larger. Overall well made and perform well as you would expect from this brand.

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Reviewed in the United States on July 20, 2018

Verified Purchase

Halle

Waukegan, US

★★★★★ 5

long lasting!

Size: Medium, Color: Black/Assorted

literally my favorite sock i will buy forever. they just started busting through after 6 years and i wear them a lot

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Reviewed in the United States on November 13, 2025

Verified Purchase

David

Draper, US

★★★★★ 5

Good quality

Size: Medium, Color: Black/Assorted

Comfy and sturdy

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Reviewed in the United States on January 27, 2025

Verified Purchase

Brooke

New York, US

★★★★★ 5

Favorite socks

Size: Medium, Color: Black/Assorted

These are my go to socks! Love these. Great towards sweat and different weather temperatures. Mostly use for working out and love them. Will be getting more!

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Reviewed in the United States on April 9, 2024