PuroAir 240 Review: Quiet in a Bedroom, Pricey to Run

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Overview

The PuroAir 240 is a compact black cylinder made to sit beside a bed or a desk and look after itself. A particle sensor on the back reads the air and sets the fan speed, a light on top shifts colour as the air changes, and a sleep mode turns the fan down and the other lights off for the night. It is a simple machine: no app, no remote, one filter cartridge and a handful of buttons.

Everything filters through one cylindrical cartridge that combines a pre-filter, a HEPA layer and activated carbon, and the control panel adds a 2 to 8-hour timer and a child lock. On Amazon.ca it is sold as a US import, shipped and sold by Amazon US with import charges included, at $250.43 CAD in October 2026, while the Winix A230 ($129.99 CAD) and the Levoit Core 300 ($149.99 CAD) were sold by Amazon.ca itself the same month.

Key Specifications

PuroAir 240 Cleaning Power and Room Size

Both lab-style reviews land in the same place: it cleans a small room, and it runs short of air in a big one. RTINGS calls it a basic, compact purifier meant for small spaces and lists among its cons a clean air delivery rate too low for larger rooms, even at the highest fan speed. The AHAM report HouseFresh cites puts its recommended room at 26 m² (284 sq ft), sized for 4.8 air changes an hour; by our arithmetic, the same airflow in the 93 m² (1,000 sq ft) room PuroAir advertises would change the air fewer than 1.5 times an hour. Health Canada adds that AHAM room ratings assume a 2.4 m (8-foot) ceiling, so a room with a higher ceiling needs a purifier rated for a larger room.

HouseFresh also timed it. On top speed, the 240 needed 48 minutes in HouseFresh’s 20.6 m³ (728 cu ft) test room to bring particle levels to zero on one sensor and 51 minutes on another. HouseFresh’s times in the same room were 40 minutes for the Winix A231, 38 for the Coway Airmega 150 and 27 for the Blueair Blue Pure 311i Max. HouseFresh gives it one star out of five, judging its cleaning poor for the price.

Our score is higher because we rate it at its AHAM size of 26 m² (284 sq ft), where it does clean the air. RTINGS rates it a good option for bedrooms, adding that a larger bedroom may need a higher fan speed, and Apartment Therapy’s reviewer, using it at home, found it worked well against allergens and smoke from cooking. HouseFresh tested it while PuroAir sold it as the “HEPA 14 240”; PuroAir now describes the 240’s filter as HEPA with CarbonTech activated carbon.

Noise and Bedroom Use

This is where it earns its place. Impressively quiet operation is one of the pros on RTINGS’ list, and its reviewers judge the low fan settings unobtrusive enough for very light sleepers; the compact body fits on a nightstand. The same low settings are where cleaning drops off, a trade-off RTINGS also flags, and HouseFresh argues that the lowest speed, the only one PuroAir quotes a noise figure for, is of no value for cleaning even a tiny room. PuroAir rates that setting at 24 dB. HouseFresh measured 36.9 dBA on the lowest fan speed and 42.2 dBA on the middle one from 0.9 m (three feet) away, and 52 to 54 dBA at top speed, adding that background noise in its test location likely pushed the low-speed readings up. Health Canada lists a lower noise rating among the things to weigh when choosing one.

Sleep mode runs the fan at a low speed and turns the other lights off, and auto mode lets the purifier react to the air without anyone getting up in the night, a point RTINGS singles out. It isn’t silent: Apartment Therapy’s reviewer noticed a slight hum when no music or TV was playing, though the review calls a little white noise a small price for the allergy relief.

Odors and Cooking Smells

The carbon stage is modest. HouseFresh found a small amount of activated carbon inside the filter, and Apartment Therapy’s reviewer found it cleared smoke from cooking but was no instant fix for food smells: after a session with a deep fryer, the oil could still be smelled, though the air wasn’t smoky. Treat it as a particle filter that takes the edge off odors rather than an odor remover.

Controls, Filters and Running Costs

One auto/mode button cycles through auto, low, medium, high and sleep, a second sets a 2, 4, 6 or 8-hour timer, and there is a child lock and a filter light you reset after a change. The filter is a single cylinder that drops into the base after you twist off the bottom cover. Because the pre-filter is part of that cartridge, HouseFresh notes you have to take the whole filter out to clean it, every few weeks depending on use.

The filter is the expensive part. PuroAir says to replace it every 90 days, so a year takes four cartridges: a genuine four-pack was $219.06 CAD on Amazon.ca in October 2026. On Amazon.ca in October 2026, Coway’s Airmega 150 filter set (a year’s HEPA filter and two six-month carbon filters) was $46.06 CAD, and Blueair’s 311i Max filter, rated to last up to nine months, was $53.99 CAD. PuroAir’s two-year warranty, with registration, covers purifiers bought from PuroAir or an authorized reseller, and its lifetime warranty needs an active PuroAir filter subscription, so check who is selling an import listing before counting on either.

How Does It Stack Up Against the Competition?

For a small purifier like this one, HouseFresh’s alternatives are the Winix A230 and Levoit’s Core 300 line, though for most people it recommends a larger purifier; the Coway Airmega 150 sits in the same small-room class, and the Blueair Blue Pure 311i Max is the step up.

PuroAir 240: Worth It for a Quiet, Hands-Off Bedroom Purifier

Buy it for a bedroom, a nursery or a home office where low noise and a set-and-forget auto mode matter more than raw speed. It is small, simple and, on its lower speeds, quiet enough for light sleepers, and the sensor saves you from fiddling with fan speeds. PuroAir also lists CARB certification, the California ozone-emissions testing Health Canada points to when it advises avoiding air cleaners that produce ozone.

Look elsewhere if you want the most cleaning for the money. The Winix A230 (tested as the A231) cleared HouseFresh’s test room faster and needs one filter a year rather than four, and HouseFresh also points small-room buyers to the Levoit Core 300, a purifier of the same twist-off design. For a living room or an open-plan space, the Blueair Blue Pure 311i Max is AHAM-rated for a room roughly half as big again and adds app control.

GuideBest Air Purifier for Home 2026: Picks for Every Room SizeRead the Guide →

PuroAir 240

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Sarah MitchellSenior Editor 𝕏 Ⓟ

Sarah has spent more than a few decades — she's not saying how many — in home design, with a sharp eye for products that deliver real quality without the inflated price tag. Her passion is finding the hidden gem that makes everyday life genuinely better.

How this was made: Built from the 16 sources listed above, including RTINGS and HouseFresh. Written with AI, then fact-checked against those sources by a separate AI. We haven’t tested this product ourselves. How we review →