
Coway
Airmega AP-1512HH Mighty
Durable, effective for allergens/odors, but loud on high.

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Levoit series is good, I have the 300S Plasmapro and it's been great. Also uses a laser sensor for the air reading which is more accurate.
You need filters specially made for smoke, otherwise they will get fucked and start to smell of cigarettes , used my s300 levoit one day in a smoky room, now it smells like the room itself.
Is this model the ‘PlasmaPro’ unit? If so, the smell may be normal from ozone. Ozone gas is generated using very high voltage, and is used to help neutralize odors. If it’s not the plasma pro models, it may need to air out and will disappear after a while
Honestly I recently got a Levoit 300s cost about £130 on amazon & it is working brilliantly no more having to vape outdoors in the cold.
My room would probally be around 10m x 10m. The air purifier sits on the table where I vape and I tend to blow it towards the air purifier. I leave the unit on auto mode and to detects the air quality & automatically turns on and clears the "smoke". I would also vape 10-15 times a day in the room using a tiny might 2 & bong.
https://preview.redd.it/zvryjvtl1r6g1.jpeg?width=1206&format=pjpg&auto=webp&s=670d65721667235a9b17e5f72bb2c78711a9b510 The levoit 300s integrates seamlessly with their vsync software.
I've had 3 Levoit 300s for over 2years now and they are all still working brilliantly. and with a lot of entity exposure to HA
I found that the smart features is where it’s really excelled. the particular sensor allowed for variation in speed ‘of the fan’ which meant that it wasn’t working at 100% all the time and picked up when the PM2.5 sensor detected an increase in impurities. Aside from that I have other PM2.5 senses around the house that can also increase the fan speed when required through voice assistant automations. Where you can also issue voice command automations like I am cooking.
I’ve owned the 200S-P for over three years now. It’s placed in my living room space where most foot traffic flows with my pets and the baby. When I’m cooking the sensors go off and turn green, yellow and red indicating air quality levels, app control ability, it has voice prompt integration my Alexa setup to adjust fan speed levels and the prescreen filter is easy to vacuum aside from the main filter that I change around once a year. It has done its job and I can see how much dust and pet dander collected on the screen filter. The intake is right in front so it allows me to place the air purifier close to one of the adjoining walls between the transition of my living space which works perfectly. I’ve been replacing it with OEM filters. No regrets on this purchase! 300S for master bed room with high traffic over 23k cumulative running hours and the occasional filter replacement / vacuum 200S for the smaller bed room with very little traffic.

Coway
Airmega AP-1512HH Mighty
Durable, effective for allergens/odors, but loud on high.

Levoit
Vital 200S-P
Smart, effective dust/odor; some find replacement filters pricey.

Winix
5500-2
Budget king, durable; poor VOC removal, Plasmawave disliked.

Coway
Airmega Mighty
Durable, great for allergies/dust, responsive auto-fan.

Winix
5510 & 5520
Good value, durable, effective for pets; carbon filter issues.

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Coway - Airmega AP-1512HH Mighty