The Winix 5500-2 is inexpensive to purchase and Filter Monster makes a filter for it that you can purchase for like $22. Quality-wise, Filter Monster is comparable to OEM. However, it is worth noting that there are no purifiers with cheap filters that will do a great job at removing smells. In order to remove smells, you need a purifiers with a ...Smokeeter makes a residential air filter "Austin" for home use for smoking. It's like $450 to start. You don't seem to be bothered about the smell, over time, but you want to push out the stale smoke correct? Honestly, even on cold and rainy days, I would just run an industrial floor fan. 18 inches or bigger.Thoughts on Levoit Core 600s. I’ve been researching getting an air purifier for my main living area. The living/kitchen area is about 620 sqft and opens up into 2 different hallway areas and also open to the basement staircase. My research says to avoid ionizers and to get one with a carbon pellet filter. This one seems to fit the bill for ...When it comes to ensuring clean and safe drinking water, there are several methods available. One such method is using bleach to purify water. While it may seem unusual to use a ho...Most worth it per dollar you can get for an air purifier. Buyer beware. Perhaps the upfront cost of the Mila has been stealthily reduced due to a hardware subsidy included in the price of the filters. Please see /u/SmokingFromage's …Designed for universal mounting, the iWave-R typically installs inside or outside of duct, or it attaches magnetically near the indoor fan in the air handler. iWave-R always works at peak performance, producing over 160 million ions/cc per polarity (320 million total ions/cc), more than any other ionizer product on the market.The dehumidifier works like a charm for year around allergies (dust mites mostly) and the air filter works for seasonal allergies. I desperately need one of these but they are so expensive. You can DIY an air purifier using a box fan and standard furnace filters from your hardware store for like $30.Either one would work well to clean the air in a regular size hotel room, but obviously the 200S has a better filtration and would work quicker and more efficiently, though the Mini is smaller and would be easier to pack. Great, the Levoit brand does look good, I’ll have a look.jhsu802701. • 6 mo. ago. The ideal location is in the middle of the room. That said, any location is better than no air purifier at all. If you had to choose just one location, near your bed is the best, because that means you get the cleanest air to breathe when you sleep. If you can move your air purifier around, then try to keep it within ... They're not if you have allergens in your air that are triggering your asthma. bsdguides. • 7 yr. ago. Personally i can only recommend them. HEPA filters will filter out irritants/pollutants from air by a very substantial amount. Less irritants, less Asthma. At least that's how it is for me. Air Doctor is a popular air purifier brand that offers high-quality air filtration systems for homes and businesses. If you’re looking to purchase an Air Doctor air purifier, you m...Jun 21, 2023 ... Air purifiers? · No speed control in HA manual unless you want to do a little deeper DIY or use dimmer outlets (which is not safe I think?). Winix 5300-2 Air Purifier with True HEPA, PlasmaWave and Odor Reducing Carbon Filter. so better off investing in a floor shampoo'er. Hey, I have the Winix WAC9500, and it works quite well getting rid of pet hair in my apartment. Check out this air purifier review for a few more great options. This is a great recommendation. Remember that the key to an air purifier is that you physically want to capture the spores. UV/ozone/electrostatic/PECO/etc are all hype. True HEPA filters are really what you want. Add an activated charcoal filter to help with odors. Rule #1 when buying an air purifier is to check the price on replacement filters.Apr 3, 2023 · The costs of filters vary widely: In our tests of large air purifiers, they range from $20 to more than $200. Filters with odor-removing carbon can cost as much as $50. Clear Air Delivery Rate ... I can tell you that air purifiers are not a scam, but your expectations are too high. Maybe in your imagination, the air purifier can quickly adsorb all the pollutants like a vacuum cleaner, but unfortunately, this is not the case. For a qualified air purifier to play its role, certain conditions are required, such as the location not close to ... Dec 1, 2022 ... I have the Levoit Core 300. It's quiet enough at lowest speed to be mostly unnoticeable. If you're using it for visible dust, you can probably ...Anyway, long story short, he doesn’t even need shots thanks to air purifier. Once in awhile if I turn of the air purifier or we need to change for new filters, he may need Benadryl, and that’s it. You cannot imagine how big of a help it is to reduce and lessen the effects of the dander/pet allergies. I recommend getting one.Advertising on Reddit can be a great way to reach a large, engaged audience. With millions of active users and page views per month, Reddit is one of the more popular websites for ...A website’s welcome message should describe what the website offers its visitors. For example, “Reddit’s stories are created by its users.” The welcome message can be either a stat...It is generally recommended to place an air purifier in the center of the room or area that you want to purify, rather than in a corner or along a wall. This will allow the purifier to more effectively circulate the air and purify it from all directions. In your studio apartment, it may be best to place the purifier in the center of the main ...Aug 22, 2023 ... The ideal location is in the middle of the room. That said, any location is better than no air purifier at all. If you had to ... My observation about HEPA air purifiers is that if you get a decent size one, they work great. HOWEVER, before you buy, check the price of replacement filters. I’ve seen replacement filters cost 75% of the original purchase price of the entire unit. 50. Yes, e.g. HEPA filters remove at least 99.97% of 0.3-micrometer particles . There are different kinds of filtering techniques . "Worth it" is a vague term, but if you have a dust, pollen, pet dander, mold spores, or dust mite feces allergy ... Air purifiers are used to reduce the concentration of these airborne contaminants and are very useful ... A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the information you share is based on reasonable facts as it directly impacts the health of others who are trying to control their indoor air quality (IAQ).A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the information you share is based on reasonable facts as it directly impacts the health of others who are trying to control their indoor air quality (IAQ).r/airpurification. • 1 yr. ago. coffeeaddictor. Best air purifier 2023. Ranking the best air purifier from Reddit user recommendations and comments. The rankings are determined below; Blueair Blue Pure 211+ Auto. Winix 5500-2. …Xiaomi air purifiers are known to be noisy in high fan speed. If you are looking for quieter units, get something bigger . Having an air purifier work hard means you’ll need to run it at high fan speed . I'm using 4 lite now almost one year. Doing well filter air in my bedroom (4x4x4m). For sound, yeah 4 lite noisy at highest fan level ...The only downside is have the power levels don't allow fine adjustments. The lowest Level is very quiet with 30m^3/h, like the sleep mode from my Winix Zero/5200. But 2nd Ikea level is already 90m^3/h, which is many …I use this Germ Guardian air purifier in my bird room. They also offer it in a slightly larger size if you are looking to use it in a very large room (or with some really dusty birds!). It is a true HEPA filter with a carbon pre-filter to reduce odor and a UV light to kill viruses/bacteria. I usually run it 24/7 and change the filter ever 4-6 ... I found it did help with the hayfever in the home office, no idea how it'll go with cat hair. The filter replacement is $120. Philips rates a lot higher than the Breville on reviews. 1. mikeinnsw. • 2 yr. ago. Good luck most hepa air purifier are gone in covid prevention or fallen over the price cliff. 2. Here are seven of the best air purifiers in 2023, based on some online sources: Blueair Blue Pure 211+ Auto: This model is the best air purifier overall, according to Consumer Reports and Tom’s Guide. It can remove particles efficiently and quietly, save energy, and cover up to 540 square feet of space.Best overall. Best value large room. Best smart features. Most energy efficient. Best high tech. Best value small spaces. How we test. Frequently asked questions. How to choose …A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the information you share is based on reasonable facts as it directly impacts the health of others who are trying to control their indoor air quality (IAQ).However they have excellent sensors built in, compared with other brands, and thus these purifiers run far longer in higher speed, sensing the air quality as bad still, and eventually clean the air the best in my opinion. But the big downside once again is that they are really loud when they are in higher speed settings.Aug 22, 2023 ... The ideal location is in the middle of the room. That said, any location is better than no air purifier at all. If you had to ... A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the information you share is based on reasonable facts as it directly impacts the health of others who are trying to control their indoor air quality (IAQ). Air Doctor is a popular air purifier brand that offers high-quality air filtration systems for homes and businesses. If you’re looking to purchase an Air Doctor air purifier, you m... Amazon, $160 : Winix 5500 -2 Air Purifier with True HEPA, PlasmaWave and Odor Reducing Washable AOC Carbon Filter. Amazon (white) , $186 : Coway AP-1512HH Mighty Air Purifier with True HEPA and Eco Mode. The bedrooms are not that big, so the 360 ft coverage might be excessive, but this would allow running the units at lower settings. Nov 13, 2023 ... It's like $25 … how good can it possibly be? Filters are $13 - I'd buy a bunch since they're likely to not exist in a year. It's made by a fake&nbs...Jan 8, 2024 ... What is your budget, look at Coway Airmega 240 l Coway Airmega 300, or Airmega 1512 are some of the best for the money, reliable company, filter ...Terms like “automation” aren’t useful, but “works with Alexa” finds automatable stuff. Now I see on top of the results: LEVOIT Smart Wi-Fi Air Purifier for Home Large Room with H13 True HEPA Filter. 1/3 the price of the Dyson and sized for larger rooms. 27 DB nighttime mode. Seems to have similar features automation wise, and there is ...Many took to Reddit to share how they watched Murder Mubarak and discussed how Sara sticks out as an odd one out in the scenes where ... Best air purifiers under 20000: …A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the information you share is based on reasonable facts as it directly impacts the health of others who are trying to control their indoor air quality (IAQ).Winix HR900. Coway Airmega 250S. Levoit Core 600s. Blueair Classic 600 (this handles all ionization/filtering ionized air in-unit, so I don't have to worry about ionized air sticking to surfaces which I am getting in the 211 I own currently) My budget is roughly $500 max. I welcome your opinions! Sort by: paulrudder. • 2 yr. ago.Arsenal F.C. Philadelphia 76ers. Johnson & Johnson. The Real Housewives of Dallas. Last Week Tonight with John Oliver. 7.4K subscribers in the AirPurifiers community. A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing….The only time I've seen it suggested to get an air filter is when working with ABS and an enclosure. And then you get the air filter so that you can recirculate the air in the air enclosure. This is the only context I heard about using an air filter. At minimum, try to vent your printer when printing with ABS (in an enclosure) out a window.Reddit users think Alia, Wamiqa, Madhuri could star as Madhubala "What Alia wants, Alia gets. There's no point in the rest of us debating anything," wrote a person. ... Best …A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the information you share is based on reasonable facts as it directly impacts the health of others who are trying to control their indoor air quality (IAQ).An air purifier can only remove the mold spores in the air and not fix the root cause of the problem. Thorusss. •. Well it will make the air a bit more healthy, but it would be one the same level as soaking up water on the ground, while a burst water pipe is still constantly leaking more water (which incidentally is one possible cause of mold ...InvestorPlace - Stock Market News, Stock Advice & Trading Tips It’s still a tough environment for investors long Reddit penny stocks. A... InvestorPlace - Stock Market N...The only time I've seen it suggested to get an air filter is when working with ABS and an enclosure. And then you get the air filter so that you can recirculate the air in the air enclosure. This is the only context I heard about using an air filter. At minimum, try to vent your printer when printing with ABS (in an enclosure) out a window.Many took to Reddit to share how they watched Murder Mubarak and discussed how Sara sticks out as an odd one out in the scenes where ... Best air purifiers under 20000: …I think once you start looking for large air purifiers with physical controls, you end up with something like the Enviroklenz, but that costs over $600. I really do think that your best bet is to get a box fan (the Amazon basics one is good because it has the corners filled in) and attach a 2-4 inch thick furnace filter. Thoughts on Levoit Core 600s. I’ve been researching getting an air purifier for my main living area. The living/kitchen area is about 620 sqft and opens up into 2 different hallway areas and also open to the basement staircase. My research says to avoid ionizers and to get one with a carbon pellet filter. This one seems to fit the bill for ... A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the information you share is based on reasonable facts as it directly impacts the health of others who are trying to control their indoor air quality (IAQ).found these on amazon... the vivosun package is $70. the medify car air purifier is $85. = $155 VIVOSUN Air Filtration Kit: 4 Inch 203 CFM Inline Fan with Speed Controller, 4'' Carbon Filter and 8 Feet of Ducting Combo Medify MA-CAR Air Purifier with H13 HEPA Filter - a Higher Grade of HEPA | Car Purifier also found this nytimes article on hepa ...The 2500 is about $500 and a Blue Air 205 Classic is about $300 both have a 5 year warranty (the Amaircare will last 10 years easy and they’ll sell you parts to fix it) The Amaircare has a lot more flexible carbon options, is better constructed, and is worth the price increase IMO but it’s up to how important it is to you. 1. Big_Brother_is ...Reddit's advertising model is effectively protecting violent subreddits like r/The_Donald—and making everyday Redditors subsidize it. Reddit has a problem. The website has always p...A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the information you share is based on reasonable facts as it directly impacts the health of others who are trying to control their indoor air quality (IAQ).Here is the analysis for the Amazon product reviews: Name: Honeywell Tower QuietClean Air Purifier with Permanent IFD Filter, Black, HFD-120-Q. Company: Honeywell. Amazon Product Rating: 4.5. Fakespot Reviews Grade: A. Adjusted Fakespot Rating: 4.5.Reddit is exploring the idea of bringing more user-generated video content to its online discussion forums, the company has confirmed. Not much has yet been determined about this p...Here are the top 5 air purifiers recommended by Reddit users: Winix 5500-2500CA Air Purifier. The Winix 5500-2500CA Air Purifier is a great option for people who are looking for an air purifier that is effective and affordable. It has a True HEPA filter that can remove 99.97% of airborne pollutants, including dust, pollen, pet dander, and smoke. 427. u/unforgettableid. • 1 yr. ago. Please install a better furnace/AC filter, and improve your home ventilation, before buying an air purifier. https://www.reddit.com/r/AirPurifiers/comments/ycexy4/please_install_a_better_furnaceac_filter_and/. 101. u/Individual-Crow4570. • 6 min. ago. A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the information you share is based on reasonable facts as it directly impacts the health of others who are trying to control their indoor air quality (IAQ).Sep 2, 2017 ... Typical replacement is 1-2 years and it runs in four modes, with the least aggressive being a background/nightime silent mode. Easy to assemble ...Best overall. Best value large room. Best smart features. Most energy efficient. Best high tech. Best value small spaces. How we test. Frequently asked questions. How to choose …Looking for an air purifier. Hello!! My asthma and allergies have decided to join forces and make an attempt to destroy me in my own home. Looking for firsthand opinions, good or bad, on any …A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the …Oct 8, 2023 ... I've just recommended Levoit haha. True it's slightly more expensive, air coverage, quality and performance is so much better than Sterra And ...Thinking of getting a Mila. Would also love your thoughts on that purifier. The Blueair 211+ auto is officially Verified Zero Ozone by Intertek with emittance of ozone not exceeding a concentration of 0.005 ppm. Thus, no need to worry about any Air Purifiers with ionizers, as long as it has been tested and Verified Zero Ozone.Winix 5500-2: This is a more budget-friendly option that offers excellent smoke removal. It comes with a True HEPA filter and a washable AOC (Advanced Odor Control) carbon filter that can effectively reduce smoke odors. The Winix 5500-2 also includes a smart sensor for automatic fan speed adjustment. Austin Air HealthMate HM400: Known for its ...Reddit is exploring the idea of bringing more user-generated video content to its online discussion forums, the company has confirmed. Not much has yet been determined about this p...You buy air filters based on square footage used so you need to do your own research and stay off the internet. Let's say you have a 900 square foot room that you want purified. Then you look for a HEPA purifier that is rated for at least 900 square feet or as close as you can find to it. HEPA is the key. Winix 5300-2 Air Purifier with True HEPA, PlasmaWave and Odor Reducing Carbon Filter. so better off investing in a floor shampoo'er. Hey, I have the Winix WAC9500, and it works quite well getting rid of pet hair in my apartment. Check out this air purifier review for a few more great options. Jan 26, 2024 · 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. A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the information you share is based on reasonable facts as it directly impacts the health of others who are trying to control their indoor air quality (IAQ).I use this Germ Guardian air purifier in my bird room. They also offer it in a slightly larger size if you are looking to use it in a very large room (or with some really dusty birds!). It is a true HEPA filter with a carbon pre-filter to reduce odor and a UV light to kill viruses/bacteria. I usually run it 24/7 and change the filter ever 4-6 ...dyson aircool me, the air it blows out becomes abit funny and stale after about 2,3 months of usage even tho the air filter cleaness % is at 90 and above. wouldnt recommend it, pricey and looks good but functionality nope as clean air filter. IQAir health pro is the best, I am using it for last 3 years, it is amazing. Coway AP-1512HH vs. Levoit Core 400S. I want to buy my first air purifier for a 40m² room at home. I am trying to decide between the Coway AP-1512HH and Levoit Core 400S. As far as specs go, I read that the Levoit has an edge there. Also I like that the Levoit has Smart Home Capabilities and can be controlled with Google Assistant. The only ingredient in Aquafina is water. The water that is used for bottling Aquafina is purified water that comes from a public water source, such as from public water reservoirs...Thoughts on Levoit Core 600s. I’ve been researching getting an air purifier for my main living area. The living/kitchen area is about 620 sqft and opens up into 2 different hallway areas and also open to the basement staircase. My research says to avoid ionizers and to get one with a carbon pellet filter. This one seems to fit the bill for ...A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the information you share is based on reasonable facts as it directly impacts the health of others who are trying to control their indoor air quality (IAQ). On its medium setting (speed three, out of five), the Air Mini+ reduced smoke levels by just 58.7%, versus the Levoit’s 92.6%. And even on its highest setting, at which it emitted an intolerable ... Winix 5500-2: This is a more budget-friendly option that offers excellent smoke removal. It comes with a True HEPA filter and a washable AOC (Advanced Odor Control) carbon filter that can effectively reduce smoke odors. The Winix 5500-2 also includes a smart sensor for automatic fan speed adjustment. Austin Air HealthMate HM400: Known for its ... Something like that is definitely the way to go! I have a bunch of different purifiers throughout the house, probably overkill, but was interested in this one for the new design. The big benefit to the Ikea is the price. $55 and $5 filters is a totally different market than a $2000 purifier and even a $100 purifier with $30 filters. Megan Anderson. Atlanta Hawks. Los Angeles Lakers. Boston Celtics. Philadelphia 76ers. AstraZeneca. Reply More repliesMore replies reply reply More repliesMore repliesMore replies. 683 votes, 98 comments. 12M subscribers in the lifehacks community. Lifehacks: Uncommon solutions to common problems.2 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 ... A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the information you share is based on reasonable facts as it directly impacts the health of others who are trying to control their indoor air quality (IAQ).
A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the information you share is based on reasonable facts as it directly impacts the health of others who are trying to control their indoor air quality (IAQ).. Being a man
A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the information you share is based on reasonable facts as it directly impacts the health of others who are trying to control their indoor air quality (IAQ).However they have excellent sensors built in, compared with other brands, and thus these purifiers run far longer in higher speed, sensing the air quality as bad still, and eventually clean the air the best in my opinion. But the big downside once again is that they are really loud when they are in higher speed settings. Yes, e.g. HEPA filters remove at least 99.97% of 0.3-micrometer particles . There are different kinds of filtering techniques . "Worth it" is a vague term, but if you have a dust, pollen, pet dander, mold spores, or dust mite feces allergy ... Air purifiers are used to reduce the concentration of these airborne contaminants and are very useful ... I’m looking at the AirDoctor versus the Alen purifiers. I’ve seen them both in action, but AirDoctor claims to get 0.003 microns in size, & Alen says 0.1 microns in size. We got an AirDoctor 3000 for my uncle’s 700 sq ft apartment because his neighbor is a heavy smoker and his apartments air quality became absolutely terrible.A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the information you share is based on reasonable facts as it directly impacts the health of others who are trying to control their indoor air quality (IAQ).Jul 2, 2022 ... It fit well at the bottom of a large carry-on sized travel bag with room for 3-5 days of clothes on top. The filter is spec'd at 99.5% FE so ...They're not if you have allergens in your air that are triggering your asthma. bsdguides. • 7 yr. ago. Personally i can only recommend them. HEPA filters will filter out irritants/pollutants from air by a very substantial amount. Less irritants, less Asthma. At …Clorox bleach can be safely used to purify water in the event of an emergency. Clorox recommends adding 2 drops of bleach to 1 quart of water or 8 drops of bleach to 1 gallon of wa...A subreddit for discussing all things related to air purifiers. Promotions, spam, and other marketing are strictly prohibited to maintain the quality of information. Please ensure that the …Winix HR900. Coway Airmega 250S. Levoit Core 600s. Blueair Classic 600 (this handles all ionization/filtering ionized air in-unit, so I don't have to worry about ionized air sticking to surfaces which I am getting in the 211 I own currently) My budget is roughly $500 max. I welcome your opinions! Sort by: paulrudder. • 2 yr. ago.Either one would work well to clean the air in a regular size hotel room, but obviously the 200S has a better filtration and would work quicker and more efficiently, though the Mini is smaller and would be easier to pack. Great, the Levoit brand does look good, I’ll have a look.jhsu802701. • 6 mo. ago. The ideal location is in the middle of the room. That said, any location is better than no air purifier at all. If you had to choose just one location, near your bed is the best, because that means you get the cleanest air to breathe when you sleep. If you can move your air purifier around, then try to keep it within ...Terms like “automation” aren’t useful, but “works with Alexa” finds automatable stuff. Now I see on top of the results: LEVOIT Smart Wi-Fi Air Purifier for Home Large Room with H13 True HEPA Filter. 1/3 the price of the Dyson and sized for larger rooms. 27 DB nighttime mode. Seems to have similar features automation wise, and there is ...They're not if you have allergens in your air that are triggering your asthma. bsdguides. • 7 yr. ago. Personally i can only recommend them. HEPA filters will filter out irritants/pollutants from air by a very substantial amount. Less irritants, less Asthma. At …Brid is another HomeKit air purifier. See my previous posts for an in depth review. It works to some degree with HomeAssistant using the homekit component however I was able to write a custom component to unlock more advanced control. I’d highly suggest you look at wire cutters air purifier video on YouTube.The Core 300 is good product for a much smaller room. For a mid-sized room or larger, the Core 400s is a better choice, because it moves substantially more airflow, which will help further reduce dust and reduce particulate matter in the air. 5. AzureSuishou.Xiaomi air purifiers are known to be noisy in high fan speed. If you are looking for quieter units, get something bigger . Having an air purifier work hard means you’ll need to run it at high fan speed . I'm using 4 lite now almost one year. Doing well filter air in my bedroom (4x4x4m). For sound, yeah 4 lite noisy at highest fan level ....