air formaldehyde self-test box

Specifications

air formaldehyde self-test box
1.self-test box
2.Size:100*75*25mm
3.Factory price
4.OEM

air formaldehyde self-test box

air formaldehyde self-test box

1.self-test box

2.Size:100*75*25mm

3.Factory price

4.OEM

 

Specifications:  

This test allows the quick and easy determination of Formaldehyde in your room.

 

Operation:

Hang the test paper in the middle of the room, and wait for 4-8 hours, If the concentration of the formaldehyde in the room is high, 4 hours is fine, otherwise 8 hours is necessary, then compare the shown color with the color chart.

 

Notes:

1:take needed root number, please quick lid.

2:When time is up, compare the shown color with the color card immediately.