We review air quality products. We buy them and test them under the same conditions to compare performance. Our tests reveal what manufacturers won’t tell you.
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In a bid to replace falling ad revenue, big media publishers are inundating the web with bad product recommendations you can’t trust.
Google is killing independent sites like ours through inaction.
We hope to still be here to see things change:
housefresh.com/david-vs-digi…
HouseFresh retweeted
In online shopping today, the hardest part is getting the first thirty reviews. Without sales, there are no reviews; but without reviews, it's very hard to get sales. If you could purchase the 5Pro on Amazon and provide an honest review, it would help me a great deal.
The 5Pro is now available in our Amazon US store.
amazon.com/dp/B0HLRJ47WL?maa…
There are currently no coupons available. If you purchase it on Amazon, remember to email [email protected] to request a $50 refund as an extra perk for my Twitter followers.
We’d also greatly appreciate your honest reviews. We need reviews to help people who aren’t familiar with AirFanta get a more objective understanding of the product.
Amazon also offers both “with carbon” and “without carbon” options. To select the “without carbon” option, click “See all buying options” to unlock it.
HouseFresh retweeted
I just got an AirFanta 5Pro a few days ago. Does it really fit in a carry on suitcase, and is it quiet? Yes, and it can be very quiet at lower fan speeds but is a bit noisy on max fan speed.
I ordered the 5Pro because I wanted an efficient whole room air purifier that is packable. I've already got a number of air purifiers I can fit in a suitcase, but none of them have really high airflows like the 5Pro does with it's 4 filter, CR Box-style configuration.
CADR
At max fan speed, the 5Pro has an AHAM registered Clean Air Delivery Rate of 379 cubic feet per minute for smoke in an 8' high room that's 587ft². That's 4.8 air changes per hour, or a smoke-free room in 12.4 minutes - I've not tested the CADR myself, but the testing is certified by AHAM on their website. You'll get higher air changes per hour in a smaller room, and fewer in a larger one.
ahamdir.com/directory
Packability
When disassembled, the stack of 5Pro parts is well under 8" high and fits in to my carry on suitcase, or even a shopping bag - just not a TJs bag because they are fairly narrow.
Unlike a regular CR Box, the filters are inserted into plastic panels that form the sides of the 5Pro, making for a nicer looking and more durable design that can be assembled and disassembled quickly and securely. The panels have magnets for quick alignment, and all 4 filter panels are the same, so assembly is easy.
When the 5Pro's top, bottom and sides are disassembled the stack parts is under 8 inches total. However, the filters are exposed on one side of the panels, subject to potential damage during transport if not handled carefully. The stacked 5Pro doesn't fit into my suitcase if I add the foam included in the original packaging in between the layers of filters. I've stacked the filters with the grills outward to protect them, but that does leave them rubbing filter to filter in the stack.
I generally check my bags when flying, but without being able to fit in the foam packing that the 5Pro ships with, I'd be reluctant to trust the bare stack as checked baggage in my soft-sided suit case. Your suitcase may have more room than mine since mine has the roller-bag extending handles nested on the inside of the suitcase rather than on the outside, and your luggage may have harder, more protective sides.
The fit and finish of the 5Pro is good. The included 12V power supply is compact. And the control knob is simple to use - push to turn on or off, and rotate for different fan speeds. The fan speed percentage is shown on the display.
Noise Levels
There is a built in particle counter and an optional auto mode based on particle count, but for me my sleep is less disturbed if fan noise, even if relatively quiet, is continuous rather than intermittent. So I'm more likely to use the manual mode. But I like that there is a built in particle counter and auto mode option.
The noise levels have a wide range. At 25% fan speed, the sound levels are too quiet for me to measure since the room I tried out 5P in had 34 dB ambient noise levels. The reported SPL for 25% fan speed is 28.5 dB, and it is very quiet. The CADR at that speed is 72 CFM.
Sound becomes noticeable, but still pretty quiet at 45% fan speed, with a reported 39.5dB at a CADR of 174 CFM. (For comparison, the durable Nukit Tempest Pro has a CADR of 222 CFM at 37dBA, but it doesn't fit in a carry on suitcase.)
Fan noise is annoying at the max fan speed. It's not just the volume, which isn't that loud at its reported 53.1dB, but the whine of the 4 fans sounds like a loud desktop computer on turbo mode with fans pouring on the speed to cool down the CPU - it's a different sound than a larger single fan air purifier. However, you can choose your prefered sound levels / CADRs.
AirFanta has published CADRs for the 5Pro's entire fan speed range in the FAQ "What is the smoke CADR, power and noise level in different fan speed?" near the bottom of the page.
air-fanta.com/products/airfa…
Overall, the 5Pro has delivered on it's promises. It has high airflow and packability all in the same unit. I wish the max fan speed was a bit more pleasant sounding, but there is the option to turn the fan speed down for quieter operation at lower CADRs. Shipping in the US was very fast, just a couple of days. YMMV.
It will take time to tell how durable and reliable the 5Pro is in the long run.
YouTube short with fan speed sound level examples at the link in the next comment.
Not a sponsored post.
Our second AirFanta 5Pro has arrived for some more tests to confirm the results of our first device 👀
ALT Photo of a box with an AirFanta 5Pro
Full AirFanta 5Pro review coming soon!
We’ve been using it at home for just over four months to test everything about it.
Currently running the bedroom test 💤
AirFanta 5Pro Officially Launched: Two Years in the Making, Fully Evolved
We are excited to announce the launch of our new air purifier, the AirFanta 5Pro, following two years of design and manufacturing.
The 5Pro has been redesigned based on the structure of the 3Pro, with improvements across the board: it looks better and is easier to install.
In terms of performance, the CADR remains outstanding. Measured in an AHAM-certified laboratory, the results are as follows:
PM2.5: 393 CFM
SMOKE: 379 CFM
DUST: 408 CFM
Pollen: >450 CFM
We are also applying for AHAM and ENERGY STAR certification.
In addition, the 5Pro now features a PM2.5 sensor and display, as well as an Auto mode. When disassembled, it can still fit into a 20-inch suitcase, making it easy to carry and store.
For purchase links and more information, please click the link below:
air-fanta.com/products/airfa…
It is currently available for purchase in the United States, Canada, Europe, the United Kingdom, Australia, and countries across East Asia and Southeast Asia.
HouseFresh retweeted
@SmartAirFilters This is exactly the kind of message that should be shared more widely.
Lower PM₂.₅ exposure is better, even when concentrations are already relatively low. This study is far from an isolated finding: a large body of research has documented adverse health effects at concentrations lower than previously understood.
This accumulating evidence is precisely why the WHO lowered its annual PM₂.₅ guideline from 10 to 5 µg/m³ in 2021. The WHO specifically noted that the change primarily reflected new evidence of health effects occurring at low levels of exposure.
The same direction is reflected in the U.S.: in 2024, the EPA strengthened its annual health-based PM₂.₅ standard from 12 to 9 µg/m³, based on the available health science.
“Low” does not mean harmless. No threshold has been identified below which PM₂.₅ causes no adverse health effects. That means reducing exposure further can still matter even when the air already seems relatively clean.
That is why communicating findings like these matters: people need to know that reducing particulate exposure isn't only worthwhile when pollution is obviously high. Even relatively small reductions at lower concentrations can matter for public health.
This is also why, in my own place, I aim to keep PM₂.₅ as low as possible. My Qingping Air Monitor Lite normally reads 0 µg/m³, and when I cook, I monitor PM₂.₅ closely and try to bring it back down as quickly as possible.
Cooking can cause surprisingly high PM₂.₅ spikes indoors, something many people only discover once they start monitoring their air, and which has led many of us to change our cooking and ventilation habits.
To put this into perspective: if PM₂.₅ averages 5 µg/m³ for 23.5 hours, a single 30-minute cooking episode averaging 250 µg/m³ is enough to raise the entire 24-hour average to about 10 µg/m³.
That is why I don't dismiss short-term exposure just because the air is clean most of the day. Keeping PM₂.₅ low also means paying attention to those temporary but significant indoor spikes.
Listen, I'm totally biased, but I think you should always have an air purifier on at home. Why? Because studies find health benefits even for lowering from "good" to "even better." This is what I do in my home. @Quora
quora.com/Do-air-purifiers-r…
HouseFresh retweeted
Testing the AirGradient Go (portable AQ monitor) in Songdo, South Korea.
Distance: 5.6km
Avg PM2.5: 13.7 µg/m³ (Moderate)
Max PM2.5: 17.9 µg/m³ (Moderate)
HouseFresh retweeted
H13 filters are typically used in laminar-flow air purification equipment—more precisely, laminar-flow supply devices such as FFUs and laminar-flow hoods. Such equipment does not rely on recirculating filtration; instead, it delivers a single pass of extremely clean air to create a localized clean zone. It is mainly used in cleanrooms, hospital operating rooms, pharmaceutical production lines, and biosafety laboratories. For residential air purifiers that use recirculating filtration, H13 filters are unsuitable because their high resistance actually reduces CADR. Unfortunately, after more than a decade of commercial marketing, the idea that “the higher the filter rating, the better” has become deeply ingrained in consumers’ minds. Through repeated testing, I have found that EPA11–12 filters can provide the highest CADR in most air purifiers—though this also depends to some extent on the fan’s airflow-versus-resistance curve.
HouseFresh retweeted
This brilliant ad summarizes our mission statement, make devices that can be repaired, upgraded and don't rely on proprietary components that lock you in. Maybe not the best business strategy but we're not really "business" people:
youtu.be/d6SPV4GZp-U?si=odQn…
HouseFresh retweeted
Came across this image a while ago from @housefresh whilst doomscrolling and felt it was important to share.
Using 2024 PM2.5 data, it estimates the cigarette equivalent air pollution exposure across 20 UK cities. A powerful reminder that cleaner air matters.
#AirQuality
ALT Infographic titled “The 20 UK Cities Where You’re Indirectly Smoking the Most Cigarettes.” It explains that cities with higher average PM2.5 air pollution are associated with more cigarette-equivalent exposure. Liverpool ranks first, with 171 cigarettes per year, followed by Worthing (166), Northampton (158), Manchester (149), Bournemouth (148), Ipswich (146), Bolton (133), Kingston upon Hull (131), Swansea (131), Cardiff (131), London (129), Nottingham (129), Luton (128), Portsmouth (126), Bristol (124), Plymouth (123), Sheffield (123), York (123), Belfast (121), and Birmingham (121). The graphic notes that the figures are based on 2024 PM2.5 data and Berkeley Earth’s calculation of cigarette-equivalent exposure. An illustration of lungs and smoke appears at the top right.
HouseFresh retweeted
Picture this:
Google’s algorithm updates have been slowly killing your long-standing food blog year after year.
No matter what you do, traffic from search keeps dropping so you decide to sell the domain to the highest bidder.
They tell you their company has a “commitment to high editorial standards” and “honest information,” so you trust that your hobbyist website will be in good hands.
Soon after, the weird self-help AI slop articles start appearing.
Your site was about vegan food but somehow they are now publishing stories about how “psychology says the loneliest people in life aren’t the ones nobody likes — they’re the kind, helpful people everyone appreciates but nobody thinks to check on.”
Your blog is now another AI slop zombie website being farmed for Google Discovery traffic and ad money.
Welcome to the content farm ↓
NEW: Brown Brothers Media is the most successful media company you've never heard of. Its success was fueled by AI, fake writers, and fake reporting.
When we started asking questions, BBM started mass-deleting content. What it became next was even worse.
futurism.com/artificial-inte…
Nearly 2,000 AirGradient users from around the world have opted in to share their indoor air quality data publicly.
The data is openly available through the AirGradient public API under a CC-BY-SA license, and you can access the live map here: openair.foundation/projects/…
HouseFresh retweeted
Now that kids are back at school, and autumn is coming, airborne illnesses are going to spread through schools.
Will you write to your MP to ask them to support putting air filters in all classrooms, please.
You can download a template letter here...
cleanairforkids.co.uk/contac…
HouseFresh retweeted
We've shipped air purifiers across Canada and I've had nothing but wonderful interactions with our fellow citizens. We will overcome this attack on our nation by sticking together and building on our strengths. #buycanadian #airpurifier #airquality
r/Dehumidifiers is no more.
The subreddit was full of advice and first hand experiences, so it's a big loss for the web.
We've been testing dehumidifiers for a while now -- 31 models so far! So if you have questions about dehumidifiers, head over to reddit.com/r/HouseFresh/
ALT A screenshot showing the legend visitors to reddit.com/r/dehumidifiers are shown stating that the r/Dehumidifiers community no longer exists.
Exciting times! The new Luggable Carbon from @cleanairkits is next in our testing queue 🤓
HouseFresh retweeted
By NEXT WEEK you can do something that results in less sickness for everyone in a classroom. Improving air quality = less illness spread. Adding 1-2 purifiers in classrooms can drastically reduce how many students (teachers & their families) become sick this school year.
CleanAirKits.com
ALT Open notebook on a chalkboard with doodles. Notebook has a drawing of a school. Highlighted and circled text reads: "Schools have a clean air problem" "And it's making all of us sick."
ALT Doodle showing a web of red lines connecting many houses, grocery store, people, etc. back to an in school infection. Text reads: "Even if you have no connection to a school you are still affected."
ALT Doodle of scientific papers. Text reads: “More than 70% of transmissions in households with adults and children were from a pediatric index case...” “... children contributed more to inferred within-household transmission when they were in school, and less during summer and winter breaks...” -Yi-Ju Tseng, PhD1,2; Karen L. Olson, PhD1,3; Danielle Bloch, MPH4 et al JAMA Netw Open Published Online: June 1, 2023 2023;6;(6):e2316190. doi:10.1001/jamanetworkopen.2023.16190
This is happening to websites in every corner of the internet.
Google AI Overviews may be convenient for the searcher, but this convenience comes at a cost.
Sites like HouseFresh and Inspired Taste are powered by real people who spend real money and real time to create valuable content for the web.
We won't be able to survive if every Tech Giant keeps training their AI with our work without compensation just to sell convenience to their users.
If this continues, the information your AI of choice will offer you in a few years time is bound to be a mix of advertising, spam and old content from the days when websites were still alive.
Here is the day that Google decided it knew how to cook everything👇
In November 2025 Google started consistently showing AIOs for all "how to" recipe queries, ranging from easier to very complex recipes...literally everything!
We worked hard to perfect these recipes by testing them countless times and responding to thousands of comments over the past decade.
Then Google steals our recipe, photos, videos, and misrepresents our content in mangled AIOs that compete against us in position one. This isn’t “commodity” content @rajanpatel and @rmstein.
We along with countless other recipe sites helped train the Google models. We perfected the recipes that Google stole by being human and doing all of the hard work. We purchased the groceries. We hired a chef. We filmed the videos. We maintained the recipes. We built something out of nothing. Google did nothing but steal everything. Look at the traffic loss👇👀
Google simply can’t do this to the open web and expect it to continue to train the AI models without compensation. Google is destroying Google search by doing this. If publishers are out of business Google won’t have anything to train on.
We are easily seeing 50-70% drops in clicks for these queries. These how to queries represent only a fraction of the drops we are seeing. This is insane and completely unsustainable!
↓
Google wiped out 99% of our traffic at Gamers Heroes.
Every guide hand written, with first hand experience, by one of us.
What takes its place? Content farms who spit out 10x the content because they just rewrite guides from other websites 😆
And if its not that, its AI doing exactly the same thing but with a microscopic link nobody wants to click.
Not sure it will matter much in the long run. I feel like publishers will have "AI do this for me" for whenever players get stuck
