Review on Air Formaldehyde HCHO DIY Test by Tony Reid

I moved to a new house and within a few months I had a sore throat and occasional stinging in my eyes. I also noticed a slight odor which I assumed was formaldehyde. I went online to see if I could find an easy to use quick test to see if we had a formaldehyde problem. I found an aeroformaldehyde self-test (HCHO) kit at Revain and decided it was worth a try. The test was very easy to use. There was some concern at first because the date on the box was a month earlier, but after corresponding with the seller I found that this was the date of manufacture. We're all so used to boxes having an expiration date that I didn't even consider that this could be the manufacture date. I performed the test as instructed in one of my rooms, which I could easily close. The entire process took less than an hour. The test showed that my values were between 0.20 and 0.25. As others have said, determining the values with a colored test strip can be tricky, so I emailed the seller a photo of the results to get his interpretation of the results. They confirmed what I observed. With these results I contacted my builder. The client sent a company to analyze the air and specifically test it for formaldehyde. Their test took nearly three weeks to get results and cost about $1,000. Her results confirmed the results I got from this test kit, which I paid $10 for. The builder is now conducting additional tests to determine the source of the formaldehyde. I am completely satisfied with this test kit and will be using it to monitor levels as we work to remove formaldehyde from my home.