EverestAir Smart Air Purifier

I use this LEVOIT in both bedrooms https://a.co/d/4UdIxew I use this one in my living room https://a.co/d/am3GNeF

[PurpleAir](https://map.purpleair.com/air-quality-standards-us-epa-aqi?opt=%2F1%2Flp%2Fa10%2Fp604800%2FcC0#11.01/47.6101/-122.3557) has pretty comprehensive real-time AQI monitoring, and I'll sometimes cross-reference it against the [AirNow Fire and Smoke Map](https://fire.airnow.gov/#9.72/47.6672/-122.0571). The latter has less sensor data, but it shows you fire, AQI, and can show NOAA smoke plumes if you select it from the gear in the righthand corner. We've got several air purifiers in various sizes, mostly due to wildfire smoke in the fall and pollen in the spring. We've got the [Levoit Vital 100](https://www.amazon.com/LEVOIT-Allergies-Eliminators-Vital-100/dp/B07X25BNBR/ref=ast_sto_dp_puis) in a home office. Great for pollen, just okay for smoke. And then we've got a [Levoit EverestAir](https://www.amazon.com/LEVOIT-Purifiers-Captures-Particles-Allergies/dp/B0B252LDH7/ref=ast_sto_dp_puis?th=1) for the living room. This one got the air from 76% filtered when I turned it on today to 99% in a couple hours. In non-smokey times we can get the whole place smelling like we just moved in. It rules but it's friggin' expensive. Be sure to check door and window seals. Our old place had a huge gap in the front door that let in aaaaaaalll the smoke. In 2017 it was so bad that I struggled to see my desktop monitor through the haze at one point. We took to sealing all the way around it (plus our drafty windows) with painter's tape until the smoke cleared. Basically sealed ourselves in, then undid just enough to leave for store trips or whatever and then we'd re-do it when we returned. If you're sensitive to smoke, an N95 helps. I get really dizzy when the air quality gets bad, and a mask when it hits an AQI of 200 helps me sleep. It's not fun, but better than smoke. If the smoke continues into October, play a John Carpenter soundtrack and stare out the window. Really completes the dismal, spooky vibe. It's our family tradition now. Sorry for the short novel here, but hope it helps! And welcome!

I have two Levoit a core 600s and an EverestAir and they both do an excellent job, I've tested them with different sensor and they do clean the air perfectly

I think this gets overstated. The Core series pre-filter just comes with the filter. It’s not much harder to vacuum those than the separate ones in the flat panel units. I say this an owner of Cores, Vitals and an EverestAir.

I just purchased a coway 400 and a levoit Everestair. Have had 2 winix for about two years, Honeywell and germ guardian before that. The coway feels and looks the most premium the coway and levoit both seem nicer upon initial impressions than any of the others but I have only had a few days. One of my winix motor broke about a year and a half in but people generally seem to have good experience with them? The levoit app is really nice and I already had levoit items if you like that sort of option. I bought the levoit for that purpose and the coway because it was on a good sale and recommended by so many. It's kinda loud and annoying pitch to the motor though that's probably going to vary per person

Winix if it’s between these two. But those numbers on units as far as sq ftage is only on high and high is annoying. I went with a huge one in the general living kitchen area and it kicks ass on low and when set to auto and it needs to ramp up it’s done quickly and then back to quiet. These models work good in a bedroom and you really don’t need an app. I have a Levoit Everest Air in the master, Levoit 600 in my printing room and two Winix in kids rooms.

Search high CADR purifiers. My recommendation is if you are ok spending the money on an iqair unit, to look at other options since you have multiple rooms. What I see right now is the levoit EverestAir on clearance for $299 from Bestbuy. It is an excellent choice with a high 350 CFM CADR. (I just got 2 more at this price) a “comparable” unit is the levoit core 600s-p(sale price 299 410cfm CADR) if the Everest is not on clearance. I would buy the core at the sale price. Owning both the Everest is better in my opinion. As others have stated multiple units will provide more benefit than one large unit. However again if you are spending that money and like iqair please consider the Atem-X as it has a very high CADR. Another option is the SmartAir blast MKII. This is a beast of a unit that targets commercial applications but is generally at the same price point as the larger IQAir units but proving a much higher CADR. I have one sitting in my 600sqft Great room.

FWIW you need to measure individual rooms and target the best or most frequent areas. The size of the house is somewhat irrelevant as these air purifiers work with smaller spaces. Additionally air purifiers are marketed very deceptively if you are not familiar with CADR or AC metrics. Some manufactures list square footage “up-to” a certain square footage. This is typically for 1 Air change rate an hour. For a decent filter in a room (that is used) you need at least 3 air changes for hour but the recommendation is 4.8 so I use 5 for my measurements. Will smaller air purifiers work? To some degree yes but they will take a very long time to clear out existing particulate matter from the air. So how does CADR fit in? It’s the actual measured rate at which clean air can be delivered by the unit. By knowing the CFM (cubic feet per minute) of the CADR (clean air delivery rate) you can size accordingly. budget constraints can definitely put pressure on your decision making but I would try to go with the larger most cost affordable option to get a better option. My suggestion would be the levoit Everest. Most places have it for $500 but for some reason BBY has them on clearance right now for $299. This single unit my provider more filtered air than the individual smaller units combined. I just added 2 more. Remember over sizing is ok but undersizing will take much longer to clear out existing particulate matter not accounting for new load. Additionally the Everest has wheels and can be easily moved. It is advertised as up to 2656 sq ft. This is for 1 air change. However we can see to hit the target 4.8 air changes to filter the air means this should really be used in a room no larger than 550 sq ft. If that doesn’t work in the budget focus on the smaller rooms for sure and size the air purifier accordingly. Otherwise you may feel like you wasted money and that air purifiers are not working. For what it’s worth I have shark never change (not great for large rooms but nice for bedrooms) the levoit plasma core 600 for our living room, the levoit Everest is in 4 bedrooms (price per performance while on clearance is hard to beat outside of DIY), a smart air blast mkII, and a 20x20 CR Cube with an 16” drum fan (garage) If you’re crafty a DIY Corsi Rosenthal cube can out perform every one of these for under $200 but the aesthetics are not very appeasing. (Hence why mine is in the garage) TLDR - sizing is important and advertising is not straightforward in regards to actual coverage.