UPPÅTVIND

Not much. Easiest explanation is this. So HEPA filters are tighter. Which ofc means that it catches more particles in one go, but EPA12 filters, because they are looser than HEPA, can pass more air through its filters. So for the same given power output, you are cleaning more air - and in each pass, EPA can also catch almost the same stuff that HEPA catches, but at lesser amounts (but it gets more passes of air for the same power output). There's quite a lot of discussion between HEPA and non-HEPA filters in this sub itself if you are interested in a more thorough reading, but the essense is, unless you are building a hospital style clean room, HEPA is probably overkill anyways. I own multiple units of the Uppatvind that I keep in multiple small rooms. They work great for small rooms, bringing the AQI way down. I also have one Starkvind for my living room since its bigger and it does the job. I don't have the table version though but its essentially the same thing - so if you want an airpurifier but anyways also want like a side table, then its a good idea. So if you are buying an Ikea air purifier, I'd either recommend the small uppatvind or the big starkvind and I'd recommend staying away from their mid size variant fornuftig. That one is in my opinion way too loud at the highest setting for what its worth.

Look up the IKEA UPPÅTVIND air purifier! I love it and it can sit a few different ways and looks so nice too.

If you want to minimize dust, your best bet is to let housekeeping in to vacuum. As for viruses, that's trickier as most of the smaller portable purifiers don't have the UV lights to kill them. But a good portable option is the Ikea UPPÅTVIND Keep in mind this purifier does have a True hepa filter. But it will filter dust and smoke. https://www.ikea.com/us/en/p/uppatvind-air-purifier-60498228/

If you want it cheap and still good the basic model from IKEA does its job for smaller rooms. UPPÅTVIND costs 30 Euro and the filter for it 5 euro. Much cheaper you can’t gets filters and it’s standard and works fine for PM2,5 for me.

I have nom smart purifiers from IKEA (FÖRNUFTIG and UPPÅTVIND) connected to a smart power outlet. Works pretty well and losing the power doesn't lose the selected speed.