SKU: 23362490263

Portable True HEPA Air Purifier

Sale price$450.00 Regular price$500.00
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Description

Portable True HEPA Air PurifierImprove the air quality of your classroom with the new portable True HEPA Air Purifier. With the dual True HEPA filters, the air purifier removes at least 99. 97% of airborne contaminants in one pass and helps circulate the air of an average classroom* 5. 2 times per hour. FOR A LIMITTED TIME Get a free replacement filter kit, with 2 filters, a $129. 99 value when you buy the Portable True HEPA Air Purifirer Includes a child safety lock, timer and

Improve the air quality of your classroom with the new portable True HEPA Air Purifier. With the dual True HEPA filters, the air purifier removes at least 99.97% of airborne contaminants in one pass and helps circulate the air of an average classroom* 5.2 times per hour.

FOR A LIMITTED TIME -- Get  a free replacement filter kit, with 2 filters, a $129.99 value when you buy the Portable True HEPA Air Purifirer

Includes a child safety lock, timer and five fan speeds to adjust to the environment. Filters are easy to replace when needed.

The purifier has the same  

  • Indicator to prompt filter replacement
  • Dual HEPA filters (filter lifetime is 1600 hours or approximately 1 year of use in a school setting)
  • Four casters
  • Runs at the same volume as a normal conversation and blends into the environment like white noise

Measures: 46 W x 27 D x 71 H cm (18" x 10.5" x 22") 


Features and tech specs
  • Dual True HEPA filters that capture at least 99.97% of particles measuring 0.3 microns
  • Also removes common allergens from the air (dust, pollen, mold, bacteria)
  • Lab tested for HEPA efficacy using smoke which represents the smallest of particles
  • In a typical classroom of 750 sq ft that gets 1.5 air changes per hour (ACH) from existing ventilation systems, adding the our air purifier will increase the ACH to 5.2*
  • The clean air delivery rate (CADR) is 365 cubic feet per minute (CFM) which means every minute, 365 cubic feet of air is purified
  •  Approximately 44dB (normal conversation noise level) at 6 ½ ft from unit
  • ETL listed to UL 507 standard

*The Portable True HEPA Air Purifier is designed for an average classroom that is 750 sq ft, with ceilings at 8 ft height. Fan speed, ceiling height, age of HVAC and other ventilation are all variables that affect total air changes per hour (ACH). To achieve optimum air purification for your room size, please contact us to calculate the right number of units for your space. You will need to provide the room size and ceiling height. 

Pre-filter is made of a micron mesh material that prevents larger particles such as pet fur, dander and course dust from clogging the HEPA filter. It captures particles that are 2.5mm in size at a rate of more than 99.9% and can easily be cleaned by hand.

 

Why Air Purifiers?

Keeping good air quality indoors can greatly improve well-being of those with asthma or allergies, and it reduces the transmission of viruses, including COVID-19. The virus spreads through aerosolized particles that tend to hang in the air unless they are blown away or removed; air purifiers can do both.

To prevent the spread of airborne viruses indoors, the air should be refreshed five to six times per hour, however, over half of existing school and building ventilation systems are outdated and achieve less than that. Placing portable air purifiers in these spaces helps reduce the amount of airborne contaminants, including viruses by refreshing and purifying the air as it passes through its filters.

*99.97% is the filtering efficiency measured with the worst-case particle size of 0.3microns (the standard for most penetrating particle size or MPPS). Particles that are smaller than 0.3microns and larger than 0.3microns will be filtered at an efficiency equal to or greater than 99.97%. Learn more about how HEPA filters capture particles. Visit the United States Environmental Protection Agency (EPA) website.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 23362490263

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4.5 ★★★★★
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M
MJ
Lake Worth, US
★★★★★ 4
Solid Upgrade, Needs Color Variety
Replaced my old frother with this one and it's a solid step up. Seriously, better build quality, more features, and noticeably more control. The variable speed dial is genuinely useful. Being able to dial from low (protein powder, matcha) to high (thick cappuccino foam) feels like an actual upgrade. The three whisk attachments give you flexibility depending on what you're making, and the included stand is a nice touch. Helps keeps the coffee bar counter from getting cluttered. Battery life seems strong so far; one charge has lasted through multiple weeks of daily use without issue. Pros: - Variable speed dial works well across a real range (not just "low" and "high") - Three whisk heads included — good for different drink types - Stand included; compact and stays put on the counter Cons: - Singular color option. The mint green clashes with everything on my coffee bar setup; wish there were neutral alternatives. ANY alternatives! - Everyone may not like the price tag but it wasn't out of my budget and the included extra bits made it worth it for me. If your kitchen palette doesn't fight the mint green, this is a capable, well-built frother at a decent price.
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Reviewed in the United States on April 13, 2026
R
Verified Purchase
Ryder Mac
Louisville, US
★★★★★ 5
Mixes matcha well
This is great for mixing matcha due to being able to adjust the speed and make it slower or faster. The stand is a great bonus.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
G
Verified Purchase
gayle johnson
Carnegie, US
★★★★★ 5
Rechargeable hand mixed.
Blends very well and fast. Sound is very quiet. Worth the price. Recommend to friends and family. Recharges fast. Very versitatable i.e eggs, frothing and drink mixes. Good power.
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Reviewed in the United States on May 21, 2026
S
Verified Purchase
Sandra Dutson
Phoenix, US
★★★★★ 5
Worth the money.
It’s very nice. Good quality. Not cheap. Handles well. I’m very satisfied!
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Reviewed in the United States on May 27, 2026
C
Chief
Dallas, US
★★★★★ 5
One of the best genral-purpose frothers out there, period
For the longest time, I've been looking for what seems like a unicorn -- something about the size of a mini-frother, but stronger than most. Almost a mini-submersion blender, really. And I still haven't found it. But the Maestri House frothers are about the closest thing I have found, which gives me hope that my unicorn might really exist someday. Unlike cheaper frothers that almost always warn you off from actually washing them, Maestri House makes theirs waterproof. Seriously, you can froth sloppy and get it all up in the whisk end of this, then rinse the whole thing under the faucet if you want to. I really don't recommend that for the speed ring at the top of this one, as a precaution and because it should never be necessary, but you can if you have to. Despite what I believe is cheaping out on the battery at just 1200mAh, it really can last a while, especially if you use it just once or twice a day. That it recharges using a USB-C connector is definitely a bonus. The speed ring at the top is great feature, overall. It turns on at a slow speed and lets you crank it all the way up to a speed that I still haven't found a good use for. This provides a lot of flexibility, from gentle mixing to full-on danger frothing. The included whisks can all be pretty handy. The whisk-whisk is good for things like two or three whole eggs, and the frother-whisk is good for general-purpose frothing. I really haven't figured out what the hook-whisk is for, because this isn't really made for handling any kind of dough, but it might work well for medium-to-thin batters. Generally speaking, I can easily recommend Maestri House frothers over just about any other handheld frother you're going to find. For completeness, though, there are a few things that I think could be improved upon: - The battery. Once you're into the $25+ range, I would expect a a high-current 2000mAh battery, for longevity and torque. - The speed ring is flexible, but depending on your dexterity and grip it can be tricky to operate when dialing in just the right speed, with just one hand. And there's no "Off" button, so you have to wind it down to "Off". For some reason I often end up spinning it the other way and making it go faster instead. Muscle memory should take over eventually, but still. A dedicated On/Off button would be handy. - For as beefy as this device feels, it doesn't handle thick liquids as well as I expected. The torque for basic mixing and frothing tasks is more than enough, but get this into thicker liquids or even four+ eggs, and it starts to bog down. - Like most frothers of this type, the balance of the whisks is a variable thing. If a whisk shaft gets even a little bent this thing will shake, at least when started at slow speed. Things usually settle out at higher speeds, but I'd really like to see the shaft of the whisks made thicker and more rigid so they don't bend so easily. - The frother whisk is good for what it is, and will quickly make great, basic foam. But unless you have supreme technique, it probably won't be good for any kind of latte art. This isn't a big problem in my mind, just something to be aware of. - The stand is okay at best, and unstable at worst. It's just a bit short for some whisks, so some of them can bottom out on the counter and make it unstable. Bending the holder at the top back just a bit with some good pliers, so the whisks are tilted up and away from the bottom, can help. I'll probably end up designing a 3D printed stand to hold this more security, as well as store the extra whisks. - I'm really not a fan of the textured finish on this model. It feels good enough, and the color is okay, but there are obvious seams on each side that, in my opinion, take away from the aesthetic. My call would be that whatever finish might be on the body, it should be seamless around the entire cylinder. I want to be clear, that none of the comments above are intended to warn you off of this if you're looking for a very good, well made frother. I doubt that you can find anything better! I only mention them because nothing is perfect, and to temper the reader's expectations. This brand, if not this specific model of frother, is almost certainly everything that you are looking for. If there's anything you don't like about this particular model on paper, I urge you to consider literally any other handheld frother they make. It only falls short compared to my unicorn device, something I don't ever expect to see from anyone else, but really believe that Maestri House could deliver if they think there's a market.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026

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