I have a difficulties to put that program in Arduino IDE. Could you advise me please?

The program runs in Particle IDE, it's not compatible with Arduino.

Did you consider adding a PMS5003 sensor to get the PM2.5/10 values as well?

I did, but most PM2.5/10 sensors are quite bulky and expensive :(

I'm probably the only one but i can't really understand the diagram that you provided is there a video or some sort of other diagram you have i can look at for wiring of the wires.

anyone tried this on nodemcu or wemos?

Great project. Any thoughts on doing a "budget remix" with some cheaper components? I was thinking Wemos D1 (ESP8266), generic Pixel Ring... Could probably get the costs down to $25 or less and might not even need to change the form factor. 

This is pretty neat! I help with the 3D printing service at my university so I might see if we can get one of these monitors set up in our printing hub.

really nice work. The housing looks great and the blynk demo is sharp. I click the link to understand how you did the app and saw it was blynk. I will definitivaly give it a try, I have lots of particle photon laying around. Thanks and great work!

Dude, ABS itself is dangerous because there are 20+  chemicals your are exposed to including Styrene when it breaks down which is why most people use PETG instead. Unless this sensor can measure all of these in different particle sizes then it's not really doing anything. Most of the testing that got published that the media ran with was done in super small enclosures that aren't even close to the size of a room in a home. HEPA filters don't even do anything for that matter because of the particle size and some homes have more VOCs than some filament could ever output.

https://ulchemicalsafety.org/wp-content/uploads/2018/12/VOCs_3DP_112018.pdf

'TVOC and IVOC emissions from 3D printing vary largely among filament materials,
while top emitting IVOCs were always associated with filament material monomers. The filament additives potentially contributed to the variance of IVOCs inconsistently detected 11 among filaments. Specifically, styrene was released from ABS, caprolactam from nylon, lactide and methyl methacrylate from PLA. Printer operating conditions like nozzle temperature, filament type, filament and printer brand, and filament color all affected VOC emissions. The exposure modeling results showed the personal and room exposure concentrations of known or suspected to be carcinogens or irritants may exceed levels known to cause health effects especially to sensitive communities.' 

Since ABS is well studied, it's enough to measure formaldehyde alone and use known data to estimate concentration of other substances (proportion in the air will be relatively stable - not precise of course, but this project is not about precision). Basically all that needs to be done - it's to get through these data and change alarm levels according to risk from all these compounds (relative to formaldehyde concentration).

Of course that won't do if you work with formaldehyde in the same room for other purposes, but if you only 3D print - it's good enough :)

Really like this one, the light and Blynk app together look great