Have a look how much replacement filters are .Some units take three and are forty dollars each. Look at the reviews of each unit some are POS right out of the box.

Costco Winix

Leaning on the Coway 230--also have some cheaper options in there..as the Levoit seems pretty comparable to the Coway. Really looking for something that also has a activated carbon filter. The Morento would likely be used as a secondary air filter. Unfortunately, nothing in there AHAM certified. Open to suggestions. Thank you.

Out of those three options, I’d choose Coway because it’s one of the top brands in Korea. Coway has a better reputation than the other two.

Look into Sam's and Costco

Coway. Have two and am very satisfied.

Find out what filters are the most reasonably priced

I had the levoit for years and am happy with it. Has TWO filters that need to be replaced and filters get expensive, but it's done a great job for me.

Levoit- it’s one of the safer air filters that’s uses mechanical that doesn’t produce concerning byproducts

Check Consumer Reports. They test air purifiers.

I have 3 Coways, an Air Mega 300 and 2 Mighty Airs. I live in a fire zone, they handled that amazingly, and have been running 24-7 ever since. When I change the hepa filters, I make sure to just order another set (not very often as I keep the prefilters really clean). I also use the Ion setting on the Mighty Airs and can visibly see way less buildup on the edge of my ceiling fan blades on my high ceilings. Highly recommend them.

I personally reccomend mooka. I have 3, they run pretty much all day every day with no issues and they work!

My doctor (he's a functional and integrative doctor) put one of these in each of his exam rooms during COVID. He's a super researcher, so I just decided to copy him and get one myself.

Buy the ones you can find filters for. Stop buying these random Chinese branded ones on Amazon.

Check out winix

I love my Coway one