PuroAir 240

Specs only matter in context. Here's where the PuroAir 240 genuinely fits — and the trade-offs worth knowing before you buy. If you're deciding between this model and similar options, focus on the fit cards below: they highlight the specific use cases where this purifier shines and the situations where it falls short.

• Good fitBest in large living rooms and open-plan spacesRated for 1000 sq ft, with a smoke CADR of 181 CFM — enough for rooms up to about 270 sq ft by the two-thirds rule, which delivers the 4–5 air changes per hour allergists recommend.
• Good fitBedrooms and light sleepersAt 22 dB on its lowest setting, the PuroAir 240 clears the 30 dB bedroom bar — roughly a whisper.
• Good fitOdors, pets, and smokeAn activated carbon stage traps the gases a particle filter can't — cooking smells, litter-box odor, VOCs, and wildfire smoke gases.
• Good fitSet-and-forget operationListed features include Particle sensor, auto mode, sleep mode — handy for letting the purifier manage itself, though none of it replaces CADR headroom.
• Keep in mindFilters cost $18.00 a monthReplacement filters run $54 every 3 months — above average. Factor that into the price comparison before judging the sticker.

These alternatives share key traits with the PuroAir 240 — same brand family or similar room coverage. Compare their scores, owner sentiment, and specs side by side to see which fits your specific needs better.

• PuroAir$259.99PuroAir 4003.2/5★★★★★3.2 out of 5 stars(7)iCARBPet hair & danderAllergy relief2000 sq ft“The PuroAir 400 uses a medical-grade HEPA 14 filter, which captures 99.99% of particles, and has a smart sensor that adjusts the filtration based on air quality.”
• Mila$408Mila Air Purifier2.4/5★★★★★2.4 out of 5 stars(0)iEnergy StarCARB1000 sq ft
• Rabbit Air$619.95Rabbit Air MinusA21.9/5★★★★★1.9 out of 5 stars(0)iAHAM VerifideEnergy Star815 sq ft

Quick answers to the questions shoppers most often ask before buying. If your question isn't covered here, check the full specifications below or compare against similar models above.

• What size room can the PuroAir 240 handle?It's rated for rooms up to 1000 sq ft. Cross-checking its 181 CFM smoke CADR against the two-thirds rule puts the honest ceiling at about 270 sq ft for allergy-level cleaning — beyond that it still helps, just with fewer air changes per hour.
• Is the PuroAir 240 quiet enough for a bedroom?Yes — 22 dB on the lowest setting is under the 30 dB threshold most sleepers need, roughly a whisper.
• What does the PuroAir 240 cost to own?Filters run $54 every 3 months — about $18.00 a month. Over three years that's $648 in filters on top of the $160 sticker, a $808 total.
• Can the PuroAir 240 handle odors and smoke?Yes — its activated carbon stage traps odor and VOC gases while the HEPA + CarbonTech filter handles the particles, which is the combination smoke and pet households need.

cadr dustiClean Air Delivery Rate for dust, in cubic feet per minute. Higher means faster dust removal.CADR guide →

183

price usdiThe listed US price when we indexed this model. Prices move — check the retailer for today's number.

159.99

cadr smokeiCADR — Clean Air Delivery Rate — measures how many cubic feet of air a purifier cleans per minute. Smoke particles are the hardest to capture, so smoke CADR is the honest number: aim for at least two-thirds of your room's square footage.CADR guide →

181

dimensions

10.63 x 10.63 x 20.47 in

weight lbs

7.3

cadr polleniClean Air Delivery Rate for pollen, in cubic feet per minute. Higher means faster relief during allergy season.CADR guide →

204

filter typeiThe particle filter grade. True HEPA captures 99.97% of particles at 0.3 microns; 'HEPA-type' has no standardized efficiency.Filter guide →

HEPA + CarbonTech

model numberiThe manufacturer's exact model identifier — handy when comparing listings across retailers.

PuroAir 240

noise db miniThe quietest fan setting, in decibels. 20 dB is a whisper, 40 dB a quiet library — for bedrooms, look for under 30 dB here.Noise guide →

22

aham verifiediAHAM Verifide means CADR and room-size claims were verified in an independent lab, not self-reported.Certifications guide →

True

carb certifiediCARB certification means ozone emissions stay below California's strict safety threshold.Certifications guide →

True

smart featuresiExtras like air quality sensors, auto mode, app control, and sleep modes. Nice to have — they don't clean the air themselves.Smart features guide →

Particle sensor, auto mode, sleep mode

warranty yearsiThe manufacturer's warranty period. Longer coverage signals confidence in the motor and build.

2

room coverage sqftiThe largest room, in square feet, this purifier can effectively clean — assuming standard 8-foot ceilings and 4–5 air changes per hour.Room size guide →

1000

has activated carboniActivated carbon traps gases, odors, and VOCs that HEPA filters can't catch — essential for smoke, cooking smells, and pet odor.Filter guide →

True

filter lifespan monthsiHow long the manufacturer rates the filter to last under normal use. Running in smoky or dusty homes shortens it.Ownership cost guide →

3

filter replacement usdiWhat a genuine replacement filter costs. Divide by the lifespan to get the real monthly cost of ownership.Ownership cost guide →

54