You wrote “CO” (which is toxic), not “CO2” (which is a common measure of air quality).
Most air quality sensors used in home automation measure VOCs (with formaldehyde included in that group) and CO2, but leave CO and NO2 (also toxic) to security alarms which will sound a siren for immediate evacuation.
I haven’t seen anything inexpensive with all the measurements you listed, only some for commercial use.
Also, you may already know this, but this forum is for people who are using the Samsung SmartThings ™ home automation platform, so all the questions and answers are assumed to be in that context. It’s very active, so it often comes up near the top of google home automation searches, but it is not a general automation forum.
There are a couple of air quality monitors which integrate with SmartThings, but I don’t know of anything handheld. And again, the toxic alerts are usually handled by different devices than the “air quality“ sensors.
Hopefully someone else will know of something, but you might also want to try asking in a brand agnostic forum, like reddit.
Also, you should specify what country you are in, as the device selection does vary quite a bit.