Formaldehyde meter for determining level of formaldehyde in an area in your home, outside or cars.
2. New Goods for the first time, please place the product on a cool ventilated place, outside the outdoors or natural ventilation more than 4 hours, let the natural formaldehyde sensor calibration. It can be used when data below 0.03 mg/m.
3. The test space will be closed for an hour, and the normal test will be used.
4. Place the product in the test space. After 5-10 minutes, the readings can be read after the value is stabilized.