I bought the air quality monitor after my cat developed asthma and started having daily attacks.
Screenshot of formaldehyde levels: https://i.imgur.com/IziHpBu.png
It rises to 300ppb at night and when I open all windows it drops to around 70ppb. Using the air conditioning increases it to around 100ppb.
Dashboard of all the air quality readings: https://www.uradmonitor.com/tools/dashboard-04/?open=820003B5
I just wanted opinions on what I'm supposed to do as a tenant and maybe a reality check. Am I overreacting?
I’m based in Las Vegas, NV.
UFFI is a prolific outgasser of formaldehyde because of 3 reasons, 1 - a stoichiometric excess of formaldehyde to drive to extinction the remanent urea. 2 - badly employed people/equipment 3 - gradual decomposition of the foam over time.
UFFI was touted as a good way to seal and retro insulate older houses via foam injection into hole drilled in residential wall gaps - often in the 1-2" range, but could be more. All worked well, people were told the stink of free formaldehyde was fade over time. This was true, but the time was long and the summer bakeout by sunlight on the walls returned. Many were sensitive to formaldehyde. Government here outlawed this government approved insulation and many people received grants to remove it - a very difficult process. it has largely faded as formaldehyde is volatile and this was years ago. https://www.csmonitor.com/1981/0917/091704.html
Your levels are low, it may be something else in the air
So was your place foamed years ago or is this a recent home job by the landlord with industrial foam not intended for houses? Search government web sites. and test web sites. https://www.canadianhomeinspection.com/home-reference-librar....
That's gonna cost money but that's the only way you'll get any evidence one way or another.