10 boxes Formaldehyde Air Rapid Test Kit, The latest 20 level formaldehyde colorimetric card, Home/Office Self Testing DIY Indoor Air Testing

Description

This Formaldehyde Air Rapid Test Kit is used for rapid and semi-quantitative testing of air formaldehyde without the need for any equipment. It is great for on-site testing of formaldehyde inside home, office, hotel, hospital, school, furniture, car and other internal space. Easy determination of formaldehyde concentration range by inspecting the liquid color and comparing to a 20-level formaldehyde self testing colorimetric card. Health Hazard of Formaldehyde: Acute Effects; Chronic Effects; Cancer: Since 1991, the U.S. EPA (Environmental Protection Agency) has regarded formaldehyde as a probable human carcinogen (B1). User Instructions: 1. Firstly, close the detected space for one hour; Then open absorption box. Put all the powder of the aluminum foil bag into the absorption box. 2. Pour the entire reagent of the brown bottle into the absorption box. 3. Cover on the box, gently shake the absorption box and wait for the contents to be completely dissolved. Open the absorb box and place it in the detected space for 30 minutes. The location should be 80-150cm distant from the ground. 4. Pour the entire reagent of the white bottle into the absorption box. Gently shake the absorption box and wait for 10 min. 5. If the environment temperature is too low, warm the box with hand for more than 5 minutes. 6. Open the cover and compared the liquid with colorimetric card. The number under the match color is the formaldehyde concentration value.