About HEPA Air Filtration Research Studies and Facts HEPA air filters are largely considered the most effective type of air filter for solid particles, such as dust and other allergens. How HEPA Filters Work HEPA air filters are made from very tiny glass fibers that are made into a tightly woven paper. This creates a filter consisting of a multitude of very small sieves that can capture extremely small particles, including some biological agents. Once trapped, contaminates and particles are not able to flow back into circulation, due to the highly absorbent pores of the HEPA air filter. HEPA Air Filter Facts and Studies developed by the Atomic Energy Commission recommended by the U.S. Dept. of Homeland Security. Air & Waste Management Association HEPA filters are recommended by the Mayo Clinic for allergy proofing the home. In a study by the UK Lung Research Centre, HEPA air cleaners significantly reduced airborne cat allergen particles when the purifier was used with a cat in the room.

In a study by the Environmental Health Sciences Department at the University of Michigan, HEPA air purifiers reduced the level of fine particulate matter in the air (such as cigarette smoke), by 30-70%. The particulate level was measured in the room where the air purifier was running, and the fan speed was set to medium, since users often run their air purifiers at a lower level when they are in the room. What to Look for in a HEPA Filter Make sure it is a "True" HEPA filter, and not just "HEPA-like". All Surround Air purifiers include a True HEPA filter. Make sure the HEPA air purifier comes with a germicidal UV lamp, otherwise, your HEPA filter could become a breeding ground for microbes with all the particulate it will capture. All Surround Air purifiers include a UV lamp as well. About Other Air-Cleaning Technologies: HEPA Air FiltrationActivated Carbon FiltrationGermicidal UV (Ultraviolet) PurificationNegative Ion PurificationPhotocatalytic Oxidation Mammoth Classic® Alpine Living Fresh Ozone Ionic Ionizer Air Purifier Clean Odor Air w/ HEPA & Carbon Filter

5 Stage Filter Air Purifier The Mammoth Air Classic Air Purifier is a stylish and powerful air purifier that is able to clean any space with great results. Say goodbye to harmful contaminants in your house with 5 stage filtration. The standardized plug socket at the back is fused for protection from surges and ensures years of reliable use! This Mammoth Air Purifier is the most popular entry level unit with most of the features of a high end air filtration system. This Mammoth Classic has 5 stages of filtration including HEPA, Carbon filter, Ionizer and Ozone generator. It is encased with a solid construction, genuine stained cherry wood exterior. True HEPA filtration filters 99.97% of all airborne particles and keeps dust, bacteria, pollen, and mold out of your air. The carbon filter is effective in filtering smoke, VOC's, airborne chemicals, and odors. The ionizer attackes dust and particles floating in the air by participation. 600 sq/ft to 2,500 sq/ft (Passive vs Active Purification)

The Mammoth Classic Air Purifier has optioal On/Off with Ozone. Without Ozone- 600 sq/ft. With Ozone- 2,500 sq/ft. Silent Operation vs Max Power The Mammoth Classic Air Purifier has adjustable level of fan speed as well as ozone level. Mammoth 3 Year Warranty, Video Tutorials and SupportPorcelain Tub Repair Nj Owners of Mammoth Air Purifiers are happy customers. Toilet Tank Lids At WalmartMammoth Air offers great customer support, warranty, as well as video tutorials for quick online help!Toy Fox Terrier Puppies For Sale In Miami 14.3 x 13 x 10.1 inches #412,765 in Home and Kitchen (See Top 100 in Home and Kitchen) #2,057 in Automotive > Replacement Parts > Filters > Air Filters & Accessories > Air Filters

This item has made a HUGE difference in our home! Our allergies seem to have subsided greatly as well as the dog odors. A quality product for sure We absolutely love this ionizer. With in minutes of plugging it in you can smell it doing its job. Replacement unit arrived and it works as expected. The small unit does an outstanding job "freshening" the air in a 300 sq ft room. The unit arrived very quickly and the cherry wood case looks great in my study. It was ready to run for filtration, ionic purification, UV and PCO for VOCs right out of the box. It works excellent for mold & cigarette smoke. GREAT machine well built and does what it says. I have migraine headaches and since purchasing. Severity and frequency have been reduced. So far I am very pleased. Since it requires the people to vacate the house while using the ozonator, I will try that feature this weekend. Not working upon arrival, had to return, must not have been tested Have had it for a couple weeks.

Helps with litter box smell. See and discover other items: activated charcoal air filter Ships from and sold by ShopperDeal Store. Air Purifier UV-C Remote Ozone Generator Ionizer Ozonator HEPA Smoke Remover #1,186,598 in Home and Kitchen (See Top 100 in Home and Kitchen) #2,426 in Home & Kitchen > Heating, Cooling & Air Quality > Air Purifiers > Parts & AccessoriesJust a little noisy Works better than expected! Takes smoke out of room like no one had smoked in there at all! good air purifier, it makes the air smell a bit off, but its normal Helps kill the vomit smell and reduces the mold in my AC.Good for a sick person that vomits a lot.Tech Test Lab Review Honeywell AirGenius 4 Air Purifier Air & Water Filters Product: Honeywell AirGenius 4 Price: $199.00Rating: Recommend*If that's a common summertime tune at home, it may be time to consider getting an air purifier. Our 1920's Los Angeles apartment is the perfect real-world testing ground for air purifiers, thanks to the urban setting, poor window and door seals, and two feline occupants.

More importantly, I live with a seasonal allergy sufferer, allowing reviewing and recording the effectiveness of the new Honeywell AirGenius 4 as easy as sniffing the air and listening for sneezing throughout the day... The Honeywell AirGenius 4 offers 3-stage filtration and an electronic ionizer for advertised 99% particle removal with a slim vertical form-factor ideal for small rooms (rated ideally for 250 sq. ft. spaces). The AirGenius 4 is small enough to hide away into a corner. Air purifiers ideally should neither be seen nor heard. At nearly 27" in height, the black grilled monolith strikes a fairly benign presence (at least once you remove all the stickers). All that height is put to good use, with a large pre-filter covering a permanent washable QuietClean ifD filter and an electronic ionizer capturing the majority of dust, spores, and other things best left out of your nose and lungs. Most air filter PR releases like to quote ideal laboratory findings about maximum air exchange and 99.999999999946282% particle removal.

But none of us live in a perfectly sealed lab space, so understanding the limitations and effectiveness of any air purifier should be considered accepting the fact most every unit has limitations related to room size, door and window seals, and even general cleanliness of the users. This is especially true in this price range, where units like the AirGenius 4 can be very effective secondary air quality aids, but generally do not perform to the standards of a pro grade unit. That all said, I've had the AirGenius 4 flanking my side all day, every day for two weeks inside my home office. The unit has performed admirably at both reducing the symptoms of seasonal allergies, alongside the bonus of keeping my computer equipment properly ventilated (clean air means less dust inside your gear) and reducing the need for air conditioning during warmer days. With 4 levels of fan speed (sleep, general, allergen and max), the three first settings are all subjectively quiet. In a completely quiet space, there is a faint noticeable electronic buzz that sits above the pleasant whirr of the otherwise remarkably quiet fan system.

But I've slept contently with the unit on even at "allergen" setting (third fastest), and even at max setting, the unit places amongst the quietest air purifiers we've tested. This comes to no surprise considering Honeywell's open honeycomb filter design, which allows air to flow easily opposed to the loud power required to push air through a multi-stage HEPA system. It's a tradeoff of filtration vs. operation noise, thus my opinion the AirGenius 4 is best used as a sidekick to a more serious HEPA system if you suffer from bad allergies. The AirGenius 4 is advertised with the ability to reduce odors and VOCs from the air, but this should be taken with a grain of lavender infused salt. The pre-filter is only going to offer a minor ability to remove the odiferous bouquet of a litter box or stinky fish supper. So keep showering, empty the litterbox, and remember to open the windows occasionally. Both the pre-filter and the more substantial honeycombed ifD filter are removable and washable, making the system an economical choice (though, if maximum allergy reduction is required, I do advise a replaceable air filter unit over these non-HEPA, washable filter systems).

And another plus: noticeably less vacuuming required, thanks to the filter systems ability to pull in dust and hair that would otherwise find their way on your floor and furniture. Just in case you're interested in the specifics, the CADR (Clean Air Delivery Rate) Rating figures are:Smoke: 161 Dust: 160Pollen: 170 Other notable features are at the filter check indicator, oscillation (nice for larger rooms), 2/4/8 hour auto-off timer, and accent lighting controls for both dimming and complete shut off. The AirGenius 4 is offered with a  5 years parts and labor limited warranty. One additional note: the AirGenius 4 is marred by what can only be deemed a packaging issue, with two review units sporting the same cosmetic marks on the top of the unit (also mentioned by customer feedback on other sites), so please be warned to inspect your unit upon shipping. Comparing the manufacturer's photo of the similarly equipped AirGenius 5 vs. the top of our AirGenius 4 review unit reveal scuff marks;

Honeywell should ship these with a static plastic sheet! Closing Thoughts The AirGenius 4 is a solid air filtration unit recommended as a secondary unit for allergy sufferers. For general air filtering use, one in each room can do a serviceable job of minimizing dust, allergens and pet fur, with the unit being quiet enough for bedroom use even set to near-max settings. The 5 year warranty and washable filter modules make the AirGenius 4 an affordable option for anyone who wants improved interior air quality without the intrusive noise of a larger HEPA unit. Pros: Static charged ifD filter does a solid job of both filtration in smaller rooms with moderate odor removal capability; compact size makes placement in smaller spaces easy, control options galore. Cons: Review unit delivered with cosmetic marks on top of control panel (twice), very faint electronic buzz may be noticeable to sound sensitive users, no HEPA filtration. Our Ratings:Strong RecommendRecommend*Weak RecommendDon't Recommend