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ZHU-CL Over item handling ☆ Air Quality Monitor Dust Dioxide Carbon sold out Dete

ZHU-CL Air Quality Monitor, Carbon Dioxide Dust Air Quality Dete

$89

ZHU-CL Air Quality Monitor, Carbon Dioxide Dust Air Quality Dete

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Product description

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1 Q: What the test index are include for air quality monitor?
A: PM2.5: is main for smog(PM1. 0 and PM10 are the same);
HCHO: is for formaldehyde;
TVOC: is main for benzene, etc Volatile organic compounds;
AQI: is for Integrated air quality index.
2. Q: What is the safe range for formaldehyde(HCHO) and TVOC?
A: HCHO≤ 0. 10mg/ m3
TVOC≤ 0. 60mg/ m3
According to (" indoor air quality standards" GB/ T 18883- 2002 and
GB 50325- 2001 Class II civil construction).
3 Q: What is the standard range for PM2.5?
A: Good 0~12
Medium 12~35
safe value 35~70
Unhealthy more than 70
4 Q: Why do I need to calibrate( Just HCHO and TVOC need to calibration, PM2. 5 and AQI no need)?
A: Our products work in the form of outdoor formaldehyde- free air sampling as a benchmark, and then get indoor air formaldehyde
content as a comparison, so the new machine products for a long time not used, the detection of environmental temperature changes,
need to calibrated first and then tested, the value of this calibration for the subsequent detection of the accuracy of a great
relevance. Calibration environment must avoid spices,perfumes, paint, cigarettes, air fresheners, alcohol and other chemical
pollutants, so as not to damage the sensor.
5.Q: Why PM2. 5 readings with the published value on the site is not the same?
A: Because the location and conditions of the test is difficult to reconcile with the weather station in the city there are
several sampling points, each sampling point measured data are also very different, the sampling point of the location is strictly
required; height 3 to 30 meters, air circulation, can not be close to the chimney, furnace and other obvious sources of pollution.
And there are no high- rise buildings, trees or other obstructions that can impede the flow of ambient air around the instrument.
6 Q: Why is the PM2. 5 test value always c

ZHU-CL Air Quality Monitor, Carbon Dioxide Dust Air Quality Dete

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Biography

During his distinguished career Paul Simon has been the recipient of many honors and awards including 12 Grammy Awards, three of which (“Bridge Over Troubled Water”, “Still Crazy After All These Years” and “Graceland”) were albums of the year. In 2003 he was given a Grammy Lifetime Achievement Award for his work as half of the duo Simon and Garfunkel. He is a member of The Songwriters Hall of Fame, a recipient of their Johnny Mercer Award and is in the Rock n’ Roll Hall of Fame as a member of Simon and Garfunkel and as a solo artist. His song “Mrs. Robinson” from the motion picture “The Graduate” was named in the top ten of The American Film Institute’s 100 Years 100 Songs.

Awards + Achievements

  • 1968 GRAMMY: Record of the Year “Mrs. Robinson” – Simon & Garfunkel
  • 1975 GRAMMY: Best Pop Vocal Male – “Still Crazy After All These Years”
  • 1982: Paul Simon inducted into the Songwriters Hall of Fame
  • 2001: Paul Simon inducted into The Rock and Roll Hall of Fame