I'm pretty interested in indoor air quality, primarily for reducing disease transmission, but also for reducing the effect of small particles from cooking. Air purifiers work well, but if you do leave them on the ground they're in the way and vulnerable to children and pets. Elevating them can help a lot, and I decided to have another go at this.

I had two purifiers to work with, the same two I compared yesterday:

• Coway AP-1512, 240 CADR @ $170
• Airfanta 3Pro, 413 CADR @ $150

For the AP-1512 I added a shelf above head height:

I was careful to route the cord where it couldn't pull the purifier down on someone's head.

The 3Pro was light enough that I could use the bottom as a shelf. I attached shelf brackets with countersunk m4 machine screws, left over from my folding portable laptop monitor:

And mounted it to the side of a kitchen cabinet:

It's not flush with the cabinet: there's a 1.5" gap. I'm not sure how much this decreases the efficacy of the filter on that side, but probably not too much?

I'm pretty happy with both of these!