I was wondering how well my homemade dust boot collects dust so I put a Dylos 1100 Pro laser particle counter INSIDE my enclosure while I was cutting MDF. This video also demos how good the enclosure is at attenuating the sound. Yes, the router really was cutting the part in the video That was a part for the den table I made (den table link here Contemporary den table cut using a Shapeoko3 XXL)
Dropbox link of the video… https://www.dropbox.com/s/284h6cu8xlp77vd/DYLOS%20INSIDE%20S03%20ENCLOSURE%20SHOWING%20NO%20DUST.mp4?dl=0
You can open the link even if you don’t have a Dropbox account. Just X out when it asks you to join.
The two numbers on the meter are particles per cubic foot divided by 100. The left number represents particles 0.5 microns and larger. The right number represents particles 2.5 microns and larger. Anything under 300 for the left number is considered “good” air quality. Anything over 3000 is very poor air quality.
Typical outside air where I live is around 500 to 3000. I designed a high efficiency air scrubber for my shop so it usually stays in the 50-300 range even when the outside air is bad.
As you can see from the video, the air inside my enclosure stays at about the same quality as the shop air. The dust boot does not catch all of the larger particles but I sweep them up in about 10 seconds after a job is finished. But, it does capture all of the small particles, which are the ones that can get deepest into your lungs and cause the most long term health issues.