What is rooftop air conditioner? Find out this commonly used system in commercial buildings with flat-roof. Expert Advice On Improving Your Home Videos Latest View All Guides Lates...Philips GoPure Car Air Purifier. See It. Summary. A powerful car air purifier that features multiple filtering stages and tackles every kind of airborne irritant, from odors to pollutants, without ...Broadly speaking, air purifiers and ionizers perform the same function — they cleanse the air, removing allergens and pollutants. They can both remove particles measuring a thousand times ...Tower HEPA/VOC Air Purifier with Ionizer (1) $ 120. 52. SPT. Tower HEPA/VOC Air Cleaner with Ionizer (7) $ 114. 36. Hunter. HP670 True HEPA Air Purifier for Allergies, Digital Tall Tower, Graphite $ 199. 99 /package. Hunter. HP670 True HEPA Air Purifier for Allergies, Digital Tall Tower, Sage $ 199. 99What is the Difference between an Air Purifier and an Air Ionizer? 1. Air purifier is a broad term that covers all types of air cleaning technologies including ionizing. 2. Air ionizer is a term that describes a air purifier that uses ionizing as its primary air cleaning technology. 3.3 days ago · Buy it if. You want a strong air purifier: This air purifier achieved an average CADR of 360 across dust, smoke and pollen — the highest rating of those I tested. By comparison, the Dyson Pure ... Learn the essential differences between air purifier and ionizer, two devices that can improve indoor air quality by removing pollutants and allergens. Compare …Best Overall: Coway Airmega 250 Smart Air Purifier, $400 from Amazon. Most Versatile: Dyson Purifier Humidify+Cool Formaldehyde, $850 from Amazon. Most Customizable : Rabbit Air A3 Ultra Quiet Air ...Ivation 5-in-1 HEPA Air Purifier & Ozone Generator, Ionizer & Deodorizer, with UV Light and Negative Ion Generator. Sale Ends in 1d 15h. Low Stock. $144.39. Sale. 75. Envion …When researching which is the best air purifier for your home, you’ll need to take into account the size of your rooms, as well as children and pets who may live there. Here are 10... Coway AP-1512HH. 361 sq ft. $200. $450 Airmega 300 and $550 Airmega 400 for larger coverage areas and additional features. Winix 5500-2. 360 sq ft. $170-250. $250 D360-3 with no ionizer and (inferior) fibrous carbon sheet rather than carbon pellets. Medify MA-112. Buy Ivation 5-in-1 HEPA Air Purifier & Ozone Generator, Ionizer & Deodorizer for Up to 3,700 Sq/Ft – Included HEPA, Carbon and Photocatalytic Filters, with UV Light and Negative Ion Generator: Air Ionizers - Amazon.com FREE DELIVERY possible on …An air ionizer purifies the air in a room by electrically charging air molecules. Many air purifiers use fans and filters to remove contaminants from the air. Air ionizers use ions to remove particulates, microbes, and odors from the air. Air ionizers make the air in a room healthier for people to breathe, especially for people suffering from allergies, asthma, and …We have a wide variety of products such as residential air purifiers, commercial air purifiers, air purifier accessories and more. Skip to the content. [email protected]. 1-888-675-2616. Login / Register. AlpineAirProducts.com. Alpine air purifiers and accessories.Mar 30, 2018 ... Some ionic air purifiers on the market use ionization to remove airborne particles, which can produce harmful levels of ozone. Ozone is a gas ...To determine first ionization energy, one must know the element being used. First ionization energy shows periodically through the table of elements in a repetitive pattern. The mo...1 offer from $49.99. #3. Enerzen Ozone Generator 40,000mg Industrial O3 Air Purifier Deodorizer (40,000mg - Black) 23,322. 1 offer from $79.95. #4. Clarifion - Air Ionizers for Home (1 Pack), Negative Ion Filtration System, Quiet Air Freshener for Bedroom, Office, Kitchen, Portable Air Filter Odor, Smoke Dust, Pets, Eliminator, Mini Air Cleaner.The most common air ionizer dangers include throat irritation, coughing, chest pain and shortness of breath, as well as an increased risk of respiratory infections. However, these ionizer air purifier side effects only occur if you inhale ozone. Not all ionic air purifiers pose these dangers. Only ozone generators are a concern.Mar 20, 2021 · In essence, an ionizer is an air purifier that uses electrical charges to remove contaminants that are floating around in the air. Ionizers are really good at removing common indoor air pollutants and getting rid of some odors. But, the most attractive aspect of ionizers is that they have low maintenance costs. Please note that there are many air cleaning devices that do not use bipolar ionization – the device packaging or marketing materials will typically indicate if bipolar ionization technology is being used. See EPA Air Cleaners and Air Filters in the Home for more information.Buy PuroAir HEPA 14 Air Purifier for Home - Covers 1,115 Sq Ft - Air Purifier for Allergies - For Large Rooms - Filters Up To 99.99% of Pet Dander, Smoke, Allergens, Dust, Odors, Mold Spores: HEPA Air Purifiers - Amazon.com FREE DELIVERY possible on eligible purchasesAEG AX91-404GY 400 Connected Home Air Purifier, Grey. £529.99. 16. Find the best Air purifier for your home from our selection. With an Air purifier you will be able to trap dust and pollen particles to enhance the quality of air within your living spaces. This functionality makes them beneficial to those who suffer from allergies, asthma and ...Ionic air purifiers use ionizers to clean the air of small particles, such as cigarette smoke and pollen. They also have HEPA filters to remove larger ones, like dust and gases. Learn how to choose …The Rabbit Air A3 is the best air purifier for pets because it’s highly customizable, with a specific filter for pet allergies. It's also very effective—in our test environment with smoke, dust, dirt, and artificial pet hair, the air purifier reduced PM 2.5 levels by 90% in 30 minutes on its lowest setting.The ionic air purifier of 2024 is the Ivation 5-in-1 HEPA Air Purifier, while the Enerzen Commercial Ozone Generator deserves recognition for its impressive reliability and durability. The IonPacific ionbox Negative Ion Generator model deserves a mention for its exceptional ability to remove odours. From my experience with brands that offer ...Jan 1, 2024 · Coway Airmega ProX 3522F. CR’s take: At 50 pounds, the Coway Airmega ProX is by far the heaviest air purifier in this roundup, but it also provides the best performance. On both higher and lower ... Ionic air purifiers emit large amounts of negative ions into the air. In the same way that static works, these ions attach to particles in the air (such as mold, allergens, and chemicals) and ground them. However, there can be negative health consequences to ionic air purifiers that negate their value as an air purifier.Apr 26, 2019 ... NOTE: See Our New #1 Air Purifier Pick (Veva 9000) - https://amzn.to/3I10K1F Wondering what the difference is between an air purifier vs ...The iWave Air Purifier is a whole-home solution to improve your air quality. It can help those who suffer from allergies, cigarette and other odors, or mold, and those looking to stop the spread of illness. ... iWave-M is a flexible ion-generating bar that can treat indoor air in nearly any HVAC application. Produces 35 million ions/cc per ...An air ionizer purifies the air in a room by electrically charging air molecules. Many air purifiers use fans and filters to remove contaminants from the air. Air ionizers use ions to remove particulates, microbes, and odors from the air. Air ionizers make the air in a room healthier for people to breathe, especially for people suffering from allergies, asthma, and …Flipkart has seen a four-fold increase in the smart kitchen segment, which includes appliances such as kettles, toasters, vacuum cleaners, and water purifiers. Stuck indoors in the...Oct 6, 2021 · SilverOnyx Four-in-One compact air purifier silently and efficiently purifies the air while reducing odors in a matter of minutes. We love that it’s compact and lightweight so you can place it almost anywhere — on an end table, bedside table or the kitchen counter. The four-stage filtration system ionizes, grabs hold of large particles ... Best Indoor Air Quality Monitors of 2024. We evaluated monitors from Airthings, Amazon, Awair, Inkbird, Qingping, Temtop, and uHoo. The best models detect a range of indoor pollutants and work ...Buy Ivation 5-in-1 HEPA Air Purifier & Ozone Generator, Ionizer & Deodorizer for Up to 3,700 Sq/Ft – Included HEPA, Carbon and Photocatalytic Filters, with UV Light and Negative Ion Generator: Air Ionizers - Amazon.com FREE DELIVERY possible on …Best Overall: Coway Airmega 250 Smart Air Purifier, $400 from Amazon. Most Versatile: Dyson Purifier Humidify+Cool Formaldehyde, $850 from Amazon. Most Customizable : Rabbit Air A3 Ultra Quiet Air ...Alen BreatheSmart 45i Pure 4-Speed Ionic White True HEPA Air Purifier ENERGY STAR (Covers: 800-sq ft). The Alen BreatheSmart 45i is ideal for bedrooms and other rooms up to 800 sq. ft. Proven to improve sleep by and independent SleepScore Labs® study, the BreatheSmart 45i emits a soothing pink noise that boosts frequencies in the lower …Nov 23, 2021 ... Ionizing technology helps improve the air by reducing airborne particles including certain odors, viruses and bacteria. This is just as ...There is one reason that most people claim that ionic air purifiers aren’t safe, and that’s ozone. The ionization process produces ozone when the negative ions bond with certain particles in the air. When there’s ozone in the air, you might notice a chlorine-like smel l that some people mistake as a “fresh” scent.An ionizing air purifier is a type of air purifier that uses negative ions to remove airborne particles. These devices are often marketed as being able to remove dust, pollen, smoke, and other pollutants from the air. However, there are some disadvantages associated with using an ionizing air purifier.The charged plates within the device attract dust, pollen, pet hair, and more. 2. Ozone-Based Purifiers: Ozone purifiers use ozone or another combination of oxidizers to clean the air. These are completely filter-free and work best …In essence, an ionizer is an air purifier that uses electrical charges to remove contaminants that are floating around in the air. Ionizers are really good at removing common indoor air pollutants and getting rid of some odors. But, the most attractive aspect of ionizers is that they have low maintenance costs.Alen BreatheSmart 45i Pure 4-Speed Ionic White True HEPA Air Purifier ENERGY STAR (Covers: 800-sq ft). The Alen BreatheSmart 45i is ideal for bedrooms and other rooms up to 800 sq. ft. Proven to improve sleep by and independent SleepScore Labs® study, the BreatheSmart 45i emits a soothing pink noise that boosts frequencies in the lower …However, doctors don’t have any long-term data that points to air purifiers reducing strokes, heart attacks or death rates. “These are all endpoints that look at changes in the blood chemistry ...Plixio Ionic Air Purifier for Home or Office - Filterless Portable Ionic Air Purifier & Travel Air Ionizer, Plug in (2 Pack) 2 Count (Pack of 1) 4.3 out of 5 stars 565. 100+ bought in past month. $38.98 $ 38. 98 ($19.49 $19.49 /Count) FREE delivery Fri, Jan 5 . …The big feature that makes an ionizing air purifier safe is to immediately collect any charged particles. A “good” ionizing air purifier is designed to use the charge to stick the particles to a filter, not the walls, floor, or your body. (Above) Collecting plate of an electrostatic precipitator ionizer air purifier.They'll look for crime online, including people who are too outspoken. China is publicly deploying its cyber police to “purify the internet” of illegal and harmful information. Acc...Clarifion - DSTx 2.0 Portable Air Purifier (3 Pack) - Plug In Air Ionizer HEPA Air Filter, Mini Personal Air Purifiers For, Bedroom and Pets Helps With Dust, Smoke, Airborne Dust and Odors 4.1 out of 5 stars 2,168Mar 31, 2023 · Ionic air purifiers are a popular type of air purifier that uses negatively charged ions to remove airborne particles from the air. Something important to note is that there are many misconceptions about these types of air purifiers, including concerns about their effectiveness and safety. Feb 2, 2022 · Air ionizers do work to clean the air. They use the process of electrically charging the air molecules as a way to remove pollutants. An ionizer does work for general air cleaning purposes; however, these units are not considered to be as effective as air purifiers that use a HEPA filter. Air ionizers can work to reduce airborne pollutants down ... The 11 Best Air Ionizers Buying Guide. By now you have understood air ionizers, how they work, their types, and benefits. Now you might have made your purchase decision. To help you in selecting the best negative ionizers, we have compiled a list of 10 most popular ionizer units outlining their features, pros, and cons.Sep 25, 2022 · In contrast, most ionic air purifiers work silently and have no filters to replace. As a result, they are cheaper to operate. Another vital detail to remember about both ionic and HEPA air purifiers is their clear air delivery rate (CADR), a metric used to calculate the efficiency of an air purifier. Most ionic air purifiers have a CADR rate ... Air ionizers do work to clean the air. They use the process of electrically charging the air molecules as a way to remove pollutants. An ionizer does work for general air cleaning purposes; however, these units are not considered to be as effective as air purifiers that use a HEPA filter. Air ionizers can work to reduce airborne pollutants …Feb 28, 2020 · An air purifier works by filtering and trapping small particles, like dust, smoke, and pollen, and then releasing sanitized air. ... One of the most popular types of air purifiers is an ionizing ... OION Technologies B-1000 Permanent Filter Ionic Air Purifier Pro Ionizer with UV-C, New (Black) 4.1 out of 5 stars. 12,837. 600+ bought in past month. $99.95 $ 99. 95. $35.00 coupon applied at checkout Save $35.00 with coupon. FREE delivery Wed, Feb 21 . Small Business. Small Business.What is Ionizer Technology? First, we need to be in sync with what air ionization is, what it can do, and how it does it. Simply put, air is drawn into an air purifier and it passes through an ion generation field. Loosely put, during this process some molecules become electrically charged. Lastly, these charged particles are emitted with …Product description. United Rentals has the resources your need to ensure the best air quality. Choose from our selection of air purifiers to rid spaces of dirt and dust. Filter out potentially harmful contaminants to protect the health of your workers and ensure site cleanliness. These machines are high-grade, portable and efficient when it ...To begin with, both ionizers and air purifiers are designed to improve the air quality in your living spaces by removing pollutants and allergens. The key difference lies in their methods of filtration. An ionizer functions by releasing negatively charged particles into the air.Ionizer air purifiers are a popular type of air purifier that uses negative ions to reduce the amount of airborne pollutants in a room. Negative ions are simply oxygen atoms with an extra electron, and when they are released into the air by an ionizer air purifier, they seek out and bond with airborne particles that are positively charged.More Americans are installing central air conditioning as heatwaves become more common. Americans have been cranking up the AC as heatwaves become more frequent. Nearly 90% of Amer...Some models of air purifiers will also be equipped with negative ion generators at the air outlet (the high voltage in the negative ion generator generates DC negative high voltage when working), which will continuously ionize the air and generate a large number of negative ions, which will be sent out by the micro fan to form negative ion ...Mammoth Ion and Ozone Generator Air Purifier, Ionizer & Deodorizer adjustable up to 3,500 SqFt - Ideal for Dust, Pollen, Pets & Smoke Smell by dummy Enerzen Ozone Generator 40,000mg Industrial O3 Air Purifier Deodorizer (40,000mg - …Adding an air purifier to a room helps get rid of potentially harmful particles, including bacteria, viruses, mold spores, and dust. However, not all purifiers are built using the same technology. An air ionizer is a unique type of purifier designed to knock particles out of the air, rather than trapping them in a filter. In recent years, the ... 1 offer from $79.95. #4. Maleb Ozone Generator 36,000mg/h - Ozone Machine Odor Removal Odor Eliminator Ionizer Deodorizer Ozonator Ozone Generator Air Purifier for Home/Car/Smoke/Pet Odor. 325. 3 offers from $49.48. #5. Medvoe 0zone Generator 30000mg - 0zone Machine for Car/Home/Smoke/Pet Odor, Black. 299. LEPL Synergy LAP1004 Antivirus HEPA & Carbon Filter, UV, WIFI, Touch&Digital display Portable Room Air... HEPA, Activated Carbon, Antibacterial Filter, UV Filter filter. Coverage Area: 668 sq ft. Reach out to us at (Mail: [email protected], Helpline: +91-9667796740 or Visit: www.lepl-lifestyle.com) ₹13,499. ₹ 24,999.The Best Air Purifier By Tim Heffernan Updated December 19, 2023 Save Photo: Connie Park FYI After new testing, we’ve added picks: the Blueair Blue Pure 311i Max and …Clarifion - DSTx 2.0 Portable Air Purifier (3 Pack) - Plug In Air Ionizer HEPA Air Filter, Mini Personal Air Purifiers For, Bedroom and Pets Helps With Dust, Smoke, Airborne Dust and Odors 4.1 out of 5 stars 2,168This item: SHARP Air Purifier with Plasmacluster Ion Technology for Medium-Sized Rooms, Bedroom, or Office. Odor and True HEPA Filter for Dust, Smoke, Pollen, & Pet Dander may last up-to 2 years each. FPK50UW. $177.99 $ 177. 99. Get it as soon as Thursday, Mar 14. In Stock.Ionic air purifiers generate and emit negatively charged ions into the air, which attract other particles, causing those particles to be charged.The use of negative ions in the air can have the following results: Improved air quality through the removal of dust, allergens, pollen, pet dander, mold spores and other airborne bacteria. Decreased exposure to airborne respiratory bacteria like colds, flu, and asthmatic triggers. Improved sleep and overall mood, according to a 2012 Italian ...The Plasmacluster 7,000 Series KC850U Air Purifier with Humidifier by SHARP is ideal for medium-sized rooms. Effective up to 1,230 sq. ft. at one air change per hour, the KC850U will filter the air in the AHAM Suggested Room Size of 254 sq ft. at 4.8 air changes per hour.Ionizer air purifiers are a popular type of air purifier that uses negative ions to reduce the amount of airborne pollutants in a room. Negative ions are simply oxygen atoms with an extra electron, and when they are released into the air by an ionizer air purifier, they seek out and bond with airborne particles that are positively charged.Do your own air conditioning calculations to determine the size and capacity of room air conditioner that you need to install. Expert Advice On Improving Your Home Videos Latest Vi...Combine your air conditioner with the AQtiv-Ion Ionizer Kit to provide a healthier indoor environment. The ionizing air purifier combines with your air conditioning system, eliminating the need for its fan and utilizing the airflow from the air conditioner instead. As a result, the AQtiv-Ion Kit has a low impact on noise levels and energy ...Do your own air conditioning calculations to determine the size and capacity of room air conditioner that you need to install. Expert Advice On Improving Your Home Videos Latest Vi... Alen. BreatheSmart FLEX Pure 4-Speed Ionic Gray True HEPA Air Purifier ENERGY STAR (Covers: 700-sq ft) Find My Store. for pricing and availability. 970. Levoit. PlasmaPro 600 5-Speed Ionic Smart White True HEPA Air Purifier ENERGY STAR (Covers: 635-sq ft) Find My Store. for pricing and availability. IonPacific ionbox – Editor’s Choice. 2. Clarifion – The Quietest Negative Ion Generator. 3. Pro Breeze 5-in-1 – Most Powerful Air Purifier and Negative Ion Generator. 4. TREKOO Air Purifier & Ionizer – Best for Small Rooms. 5. AirTamer A310 – Best Personal Negative Ion Generator.Feb 8, 2019 · Mammoth Ion and Ozone Generator Air Purifier, Ionizer & Deodorizer adjustable up to 3,500 SqFt - Ideal for Dust, Pollen, Pets & Smoke Smell by dummy Enerzen Ozone Generator 40,000mg Industrial O3 Air Purifier Deodorizer (40,000mg - Black) Wynd Plus Smart Personal Air Purifier with Sensor. Price: $$. This air purifier weighs less than 1 lb. and is the size of a water bottle. It uses a medical-grade filter plus antimicrobial silver ...Adding an air purifier to a room helps get rid of potentially harmful particles, including bacteria, viruses, mold spores, and dust. However, not all purifiers are built using the same technology. An air ionizer is a unique type of purifier designed to knock particles out of the air, rather than trapping them in a filter. In recent years, the ...Feb 2, 2022 · Air ionizers do work to clean the air. They use the process of electrically charging the air molecules as a way to remove pollutants. An ionizer does work for general air cleaning purposes; however, these units are not considered to be as effective as air purifiers that use a HEPA filter. Air ionizers can work to reduce airborne pollutants down ... The Blue Pure 511 has a CADR of 112 cfm for smoke, pollen and dust, claims to cover up to 432 square feet of space and retails for only $100 at the time of this publication. It features a HEPA ... Novant Sees Enhanced System Efficiency with iMod. GPS Air and Novant Health partnered to conduct a test to improve the efficacy of a low performing air handler using the GPS-iMod. The study shows a significant decrease in static pressure across the coil enhancing both system efficiency and airflow and contributing to potential energy savings.Air ionizer pros. The maintenance and upkeep costs for an air ionizer are less than they are for an air purifier. This type of air cleaner may be better for larger rooms and it can help reduce ...The level of ozone produced is important so that it doesn’t become a hindrance to our ozone layer and our climate change. They help with energy and mood. In fact, an ionizer air purifier is a good choice for those with stressful environments, such as offices and the like. Negative ions are at work to alleviate rough Monday moods.Some models of air purifiers will also be equipped with negative ion generators at the air outlet (the high voltage in the negative ion generator generates DC negative high voltage when working), which will continuously ionize the air and generate a large number of negative ions, which will be sent out by the micro fan to form negative ion ...One of the most popular types of air purifiers on the market right now are ion-generating systems, including “bipolar ionization” devices that electrically charge particles so they settle out of the air faster, and are generally marketed to kill bacteria, fungi, and viruses. Understandably, the “virus-killing” capability has drawn ...Some models of air purifiers will also be equipped with negative ion generators at the air outlet (the high voltage in the negative ion generator generates DC negative high voltage when working), which will continuously ionize the air and generate a large number of negative ions, which will be sent out by the micro fan to form negative ion ...If you have gone through this HEPA vs. Ionic Air purifiers comparison, then the answer is pretty clear. We lean towards HEPA purifiers because they can filter better than Ionizers. There are no byproducts from HEPA filters, and they are safe for public use. Then there is the odor neutralizer which is a game changer.Mammoth Ion and Ozone Generator Air Purifier, Ionizer & Deodorizer adjustable up to 3,500 SqFt - Ideal for Dust, Pollen, Pets & Smoke Smell by dummy Enerzen Ozone Generator 40,000mg Industrial O3 Air Purifier Deodorizer (40,000mg - …
May 18, 2022 · An ionizing air purifier — known as an ionizer for short — works differently than traditional purifiers with a mechanical filter, such as a HEPA air purifier. Rather than passing the air through a filter to trap pollutants, ionizers emit negatively charged ions that attach to positively charged airborne particles. . Space book
Adding an air purifier to a room helps get rid of potentially harmful particles, including bacteria, viruses, mold spores, and dust. However, not all purifiers are built using the same technology. An air ionizer is a unique type of purifier designed to knock particles out of the air, rather than trapping them in a filter. In recent years, the ...Sharp - Smart Air Purifier with Plasmacluster Ion Technology Recommended for Extra-Large Rooms. True HEPA Filter - White. Model: FX-J80UW. SKU: 6418284. Rating 4.3 out of 5 stars with 3 reviews (3) Compare. Save. $497.99 Your price for this item is $497.99. 1-18 of 22 items. 22 items. Previous.As for ionic air purifiers that use a metal filter to trap pollutants, these units tend to max out at 500 sq. ft. That’s because an ionic air purifier requires a fan to draw the air through the system and the …The Ionic Comfort Quadra® Air Purifier by Sharper Image features powerful air cleaning technology, newly enhanced with sleek touchpanel controls. • Super-efficient room air purifier helps remove airborne dust, viruses and allergens such as molds, dust mites, pet dander, smoke, pollen, bacteria and odors from the air you breathe.In many cases, using an indoor air ionizer produces ozone, which can be an irritant for some people with lung conditions like asthma. The EPA says: “There is even greater concern with the direct ...Ionizer air purifiers are generally safe because ionizers aren't energized enough to be harmful to you. Air ionizers are designed to help provide cleaner air and they do so through the use of ionized particles. These ionizers turn on for 8 hours every day, and I have a Therapure TPP300D with UV+ ionizer that turns on for 8 hours in my living ...Flipkart has seen a four-fold increase in the smart kitchen segment, which includes appliances such as kettles, toasters, vacuum cleaners, and water purifiers. Stuck indoors in the...Indoor air purifiers are the most common intervention strategy adopted to reduce indoor PM 2.5 exposure, with filtration purifiers being the traditional type of indoor air purifier used [6,7]. Intervention studies have reported the cardiopulmonary benefits of high-efficiency particulate air (HEPA) filtration purifiers in young, healthy adults ...As consumers, we often rely on reviews to make informed purchasing decisions. When it comes to products like air purifiers, reading reviews can give us insights into the effectiven... An air ioniser (or negative ion generator or Chizhevsky's chandelier) is a device that uses high voltage to ionise (electrically charge) air molecules. Negative ions, or anions, are particles with one or more extra electrons, conferring a net negative charge to the particle. Cations are positive ions missing one or more electrons, resulting in ... 4 in 1: This allergies house air cleaner is a HEPA filter, humidifier, ionizer, and UV lamp. This air purifier with UV-C sanitizer and ionizer packs all those functions into one silent unit ; Quiet: These quiet air purifiers for bedroom only produce 18 dB of noise, the same as a whisper five feet away..