Levoit

PlasmaPro 300S

Levoit PlasmaPro 300S

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Overall

#64 in

Air Purifiers

according to Reddit Icon Reddit

Sentiment score68% positive
17
4
4

Top Pros

Top Cons

Last updated: Jun 16, 2026

Reddit Reviews

Reddit IconNomski88
6 months ago

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.

Reddit IconTorekO87
3 months ago

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.

Reddit Iconunforgettableid
11 months ago

Hello! Out of those two, definitely choose the Levoit. Small Chinese manufacturers may use various sneaky tricks to artificially boost their review scores. If their average scores drop, they might choose a new random brand name (e.g. ZKLX) and start over. ### Deals If you don't want to spend $120, consider looking for a name-brand unit which is used, refurbished, open-box, or an [Amazon Resale](https://www.amazon.com/b?node=10158976011) item. Maybe try Facebook Marketplace or your favorite classifieds app. You can also post a wanted ad to /r/purifiers_classifieds. Amazon Resale makes it easy to buy, and offers easy returns if you don't like the purifier. However, it's probably even cheaper to buy used locally. ### Sensors > AQ read‑out The air quality sensor built into any consumer-grade air purifier will likely be cheap and unreliable.

Reddit Iconaoike_
11 months ago

Ive got pets and asthma, and I think the air purifiers help. At the very least, they do trap a lot of dust and pet dander. I also find the noise soothing. I've got a lenvoit that my mom bought me from Home Depot. Neat thing. Does a space of about 300 sqft. Filters are easy to replace, and the machine is easy to keep clean.

Reddit IconFragrant-Gain1081
10 months ago

i bought a plasma pro one the other day. as long as i keep it off, do you think it’ll be fine?

Reddit IconJAK49
10 months ago

I’m using a few Levoit Plasma Pro units. It honestly changed my life. I used to literally cough up blood due to the irritation from seasonal allergies. When I’d lay down at night you could hear burbling in my lungs. I got this filter last summer and it was legitimately the first summer I’ve slept well in close to 20 years. Ditto this summer. I’d say a 90% reduction in my symptoms while at home. Obviously outside the house I still get nailed. I burn through filters though. I run this thing on max most of the summer. The rest of the year I set it to auto and let the sensors detect when to ramp up. Not sure exactly how the air quality sensors work, but they are extremely fast and accurate. If I have a candle lit they go crazy letting me know my air quality is terrible.

Top Air Purifiers on Reddit

1
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2
Levoit Vital 200S-P

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3
Winix 5500-2

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4
Coway Airmega Mighty

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Durable, responsive auto-mode, but struggles with strong odors.

Check priceAmazon
5
Winix 5510 & 5520

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Good for allergies/pets, but carbon filter and Plasmawave issues.

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Rankings by Use Case

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