Coway Airmega 200M Air Purifier w/ True HEPA & Smart Mode (Black) Expired

The answer to your question is, as with everything: it depends. You have to remember that an air purifier is essentially your solution of last resort - it often won't directly address the source of what's causing your air quality to be low.

First step is that you need to assess for yourself what is your indoor air quality. Get or borrow a good quality air sensor, and review the measurements you get against various standards/benchmarks. Is your air quality higher than norm? Then no air purifier needed (unless you really really want one because you're ultra-concerned about your health or something else) If your air quality is lower than norm, then you need to ask - by how much?

If you deem your air quality to sufficiently bad that you want to do something about it, then you need to ask - what are the factors affecting your air quality? If, for example you wear your shoes indoors but vacuum maybe once a year, an air purifier might be more of a band-aid solution (the cheaper and more effective way to deal with this source of bad air quality would be to leave the shoes at the door and vacuum more often). If you have a pet that sheds like crazy all year, then ask yourself - can I do without the pet? If not, are there other things I can do to clean up my pet's dander before resorting to an air purifier?

Once you've assessed all known sources of air pollution that impact you currently, and things you can do to mitigate it at the source, then consider potential air pollution risks - do you live in an area where wildfires are a risk? Are there seasonal dust storms or nearby construction that will happening soon? If you are, are you willing to put up with workarounds or makeshift solutions until the pollution subsides? For how long are you willing to put up with workarounds - 1 week? 2 weeks? 3 weeks?

Lastly, consider your needs vs. the needs of others asides from yourself. Do you live with roommates who might appreciate better air quality? Does anyone live with you (or might be living with you) that has sensitivities or allergies that you don't have? What's the opportunity cost of ~$120 bucks for an air purifier vs. spending it on a gift for someone special or paying down debt?

No need to boil the ocean to figure out if you need an air purifier, but just a small bit of critical thinking should net you a better answer that someone telling you: "go get one."

the coway 200M is very comparable to the costco's winix c545 (both true hepa and similar sq ft coverage/CADR). in terms of value, i think winix c545 wins especially when it's on sale at $100 (and it comes with 2 years worth of filters). both are korean companies with a history of specializing in air filtration, but i would rank coway as a brand slightly above winix. coway is more high end/premium (and more commonly seen in business, kid's cafe, schools, doctor's office settings in korea along with LG air purifiers with their higher tier models).

Dedicated button and indicator light to enable ozone. Has never accidentally enabled ever on mine. Non issue.