Home » Air Innovations MH-408 Black 1.1 Gal. Cool Mist Humidifier for Medium Rooms
Air Innovations MH-408 Black 1.1 Gal. Cool Mist Humidifier for Medium Rooms

Air Innovations MH-408 Black 1.1 Gal. Cool Mist Humidifier for Medium Rooms

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Main Benefits:


Here are a few main benefits of Air Innovations MH-408 Black 1.1 Gal. Cool Mist Humidifier for Medium Rooms.

  • Permanent Ceramic Filter Never Needs Replaced
  • Infused Tank and Base Helps Prevent Growth of Microbes in the Tank
  • Runs Up To 70 Hours On One Tank
  • Designed to operate quietly for uninterrupted sleep
  • Variable mist settings, Rotating mist nozzle, and more.

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Last update on 2020-09-30 / Affiliate links / Images from Amazon Product Advertising API


More Info:


Here are some more information on Air Innovations MH-408 Black 1.1 Gal. Cool Mist Humidifier for Medium Rooms.
Color:BlackThe Air Innovations model 408 ultrasonic, cool mist, humidifier is one of the top rated, longest running, and most versatile humidifiers available for its size.   Key Features:   1.1 gallon tank that runs for a full 70 hrs on low (almost 9 nights of sleep) and is completely silent when running.   It s powerful enough to add humidity to medium size rooms up to 400 Sq ft. The entire unit and base are made of antimicrobial plastic to prevent bacteria, mold, and mildew growth and it comes with a permanent ceramic filter to help trap impurities in your water.     Unlike Vicks, Crane and Essic humidifiers, it also features a 360-degree rotating mist nozzle helps direct the moisture where you want it. Additional features, are a built in handle on the top and bottom of the tank with extra wide opening for easy filling and carrying as well as an auto shut off.   Great for kids and babies, this cool mist humidifier also rehydrates your skin, relieves dry eyes, scratchy throats, post nasal drip and helps reduce snoring so you sleep better. As a bonus, it also rehydrates wood furniture, cabinets, wood floors and wooden guitars.

Frequently Asked Questions:


Here are a few frequently asked questions and answers on Air Innovations MH-408 Black 1.1 Gal. Cool Mist Humidifier for Medium Rooms.

Question Question 1

Easy To Clean The Tank?

We clean the base about every 3 tank fills. It has been easy to clean. We only use distiller water to run the unit. We only rinse the thank.

Question Question 2

What Is The Diameter Of The Base?

8 x 8 x 14 inches these are the dimensions on thelisting.if you are needing just the base bottom size O.D will have to go home and measure it.

Question Question 3

Is There A Handle At The Top To Install When Full?We Purchased The 509 Model And The Handle Was At The Bottom And Cumbersome To Put In Base,?

Yes there a handle at the top. It’s a groove that you can put your fingers into to lift the tank off the base.

Question Question 4

Does This Unit Have An Aroma Tray?

Yes. Ours broke and we returned it.

Question Question 5

Does It Use Tap Water?

Thank you for your inquiry. Tap water contains minerals such as calcium and salt and depending on their concentration the crystals may harden around the nebulizer of your unit and damage it. The process of distilling water removes most minerals making it the best option to use in your unit. we hope this information has Thank you for your inquiry. Tap water contains minerals such as calcium and salt and depending on their concentration the crystals may harden around the nebulizer of your unit and damage it. The process of distilling water removes most minerals making it the best option to use in your unit. we hope this information has been helpful.Please feel free to contact us toll free at (877) 959-1234 should you need further assistance.Kindly,Air Innovations Customer Care Response Team

Question Question 6

How Do You Put In The Water? Lost The Mahual & Haven’T Used It For Long Time.?

there is a handle in the back and you liftstraight up separating the top and bottom. Take the steam direction piece out of the top and flip the tank upside down. You will then see a large knob, turn that to open tank, fill and replace be sure it is snug. Flip back on top of the bottom part of the unit matching up the there is a handle in the back and you liftstraight up separating the top and bottom. Take the steam direction piece out of the top and flip the tank upside down. You will then see a large knob, turn that to open tank, fill and replace be sure it is snug. Flip back on top of the bottom part of the unit matching up the front of the tank. If you miss it can cause some water to spill (not a lot). Then turn on and enjoy breathing a bit easier.Hope this helps. (there is even a handle on the bottom to carry it back to the base)

Question Question 7

Are There Any Lights On This? Have Been Searching For A Humidifier For The Bedroom, But Many Have Obnoxious Lights/Displays That Cannot Be Turned Off.?

Yes, it does have a light – an obnoxiously bright green light. No, you can not turn it off without turning off the unit.our fix – we place one or two Lightdims (sold by ) over the light – problem solved.

Question Question 8

Can This Be Filled At The Top?

No.You have to turn it over to fill it.

Question Question 9

How Often Does It Need To Be Cleaned. Last Humidifier We Bought Had Lots Of Tiny Parts And Cleaning It Was A Job.?

We have not had it that long but it looks like you don’t have to clean it very often.

Question Question 10

Is This Made In The Usa?

Thank you for your question.No, this item is not made in the USA.Air Innovations Customer Care Team

Question Question 11

We Didn’T See A Plug-In Cord; Does This Run On Batteries?

it runs very wellon electricty we have purchased 4 of them 2 as gifts

Question Question 12

When Do You Replace The Filter?

Well.it doesn’t have a filter per se, there’s a little thing filled with tiny balls that we guess you just rinse if need be.we really like this humidifier as it is ABSOLUTELY SILENT.Not a sound and it puts out a good amount of mist.It’s smallish and can last a couple of days or, if you have it at full blast, just Well.it doesn’t have a filter per se, there’s a little thing filled with tiny balls that we guess you just rinse if need be.we really like this humidifier as it is ABSOLUTELY SILENT.Not a sound and it puts out a good amount of mist.It’s smallish and can last a couple of days or, if you have it at full blast, just a day.we don’t know why people are saying it’s good for a small room because we have it in our living room and we no longer get shocked touching the light switch in our bedroom closet.we live in Maine where it gets incredibly dry in winter and we bought the thing because we were sick of getting shocked when we touched anything.Two in a 3 bedroom house has been more than enough.It’s the best one we have ever had and we would definitely recommend it.Hope that helps.

Question Question 13

How To Clean?

just need to, at least once a week, empty the base unit and rinse with very hot water, if you dont it will develop scum and will be a health risk , we also rinse out the main container every week also, this is not a set it and forget it thing, we will also tell you that we have had these for years, and we love the results, just need to, at least once a week, empty the base unit and rinse with very hot water, if you dont it will develop scum and will be a health risk , we also rinse out the main container every week also, this is not a set it and forget it thing, we will also tell you that we have had these for years, and we love the results, but they really only last about 3 years before they become very weak and useless

Question Question 14

How Do We Replace The Top Small Valve Where The Humidified Air Comes Out.?

our guess is contact the Air Innovations online.we have purchased parts before this way.

Question Question 15

Not Available Through Prime – If Dissatisfied Will We Be Fully Refunded?

This is a good humidifier

Question Question 16

Is This A Warm Or Cold Mist Humidifier?

This is a cool mist humidifier.

Question Question 17

Does This Model Have Auto Shut Off?

No.Manual of/off.

Question Question 18

Does This Device Need Demineralization Filters?

No

Question Question 19

Where Can Replacement Parts Be Purchased?

depends on the item and part

Question Question 20

Funny Odor Coming From The Mist? Do We Have To Change/Buy A New Ceramic Filter????

You should not have the funniest man we would clean our filter really good and sometimes we would put in just a little bleach not much maybe a tablespoon it helps to freshen the air


Our Insights:


See our insights (based on our own experience after purchasing and using the product, or based on some research work) on Air Innovations MH-408 Black 1.1 Gal. Cool Mist Humidifier for Medium Rooms, these might be useful for better understanding.

Our mom recommended this particular humidifier when she came to visit us. Our house is very dry for some reason (lots of wood) and others have commented before on how dry it is. We have tried different humidifiers and they are either too big, or too loud, or too hard to keep clean, or too strong with condensation on every wall even at the lowest setting, or too expensive, etc. We had given up on finding a humidifier. Until this one. We keep one in the living room and one in the bedroom. We think we will get two more for the guest room and kids room (our kid has one of those vicks vaporizer ones in her room – seems to work ok when she needs it). Tip: get a humidity reader https://www. . Com/gp/product/b0013bkdo8 to go along with it. That way you know how to adjust on the fly. In winter we try to keep it at least 35% – although high 30’s up to 40, 41 feels best (in winter – summer it’s higher naturally). Without the humidifiier our house will stay at an uncomfortable and spark inducing (haha) 25%. Tip: we believe it’s meant to be on a table instead of on the ground. It not only works better for each room this way, but we found when we had it on the ground, it misted the carpet too much instead of the air. Pros:–great price and works very well. We bought two, and we may get a third for our kids room–size seems to be what makes it so perfect for us. The ones we had before held too much water and were heavy to fill/move. Just ends up creating a bacteria haven. –looks great. Everyone one who comes in for some reason says “where did you get that??”. It’s not one of those clunky white things with a giant tank – very sleek. –perfect amount of humidity and very easy to adjust as needed. –easy to refill – light. –easy to clean. We clean it every other/every 3rd or so tank fill. It comes with a handy little self storing brush. –very quiet – almost soothing. The last few we had would gurgle loudly or run louder. –will run for a couple of days in normal weather without having to be refilled, and once every 24 hours or so on winter days that are very drycons–trying hard to think of one. 🙂 it needs to be on a table top. So we had to find space for it in each room. –wish it had a super easy essential oil diffuser function. We like to run essential oils (doterra breathe – amazing) all winter long, so we have to have two units going – this one and our aroma diffuser. But that particular unicorn combo of great humidifier at great price + aromatherapy diffuser doesn’t seem to exist – unless someone knows of one. Highly recommend this unit for every room where you spend time in winter. Until we bust out $10k+++ on a whole house humidifier, this works great.

We had ordered one before off a shopping site and really liked it so when we let our son use it we couldnt do without it, (its feb. In mich. ) we ordered one from we believe this is is better , same exact model but seems better somehow. We wanted a table top, no filters to order or worry about, depending on how high you have it coming out depends on how much water you use , we have it going almost full mist during day and turn it way down at night, it last 2 days, which we dont think is bad, we dont buy distilled water anymore, we go to grocery store and get culligans refill or 3 filterd water, works fine for 44 cents a gallon. We would not hesitate to recommend this to anyone, price is moderate for our needs, we dont understand the bad reviews, yes it makes a gurgling sound but thats when water starts getting low and the sounds lasts for less than 2 seconds, if that. 5 stars in our book, and we did our research, trust me.

We’ve used several different humidifiers throughout the years. One of the hardest things is finding one that won’t disrupt sleep. This one doesn’t have a glaring led and is very quiet. The output is appropriate for “medium rooms”–not as intense as others we have used, but enough. And the fan speed matches the water output well so things around it don’t get wet. It does tend to smell musty fairly quickly (within 3 days?), but it’s easy to clean. We use tap water in it and it doesn’t leave a white residue or pink slime inside. About to order a second one.

Great product, but we don’t know how antimicrobial it is. The base definitely grows mildew faster than any other humidifier we own, even with the dropins we use. Seems solid, nice design. Replaced a vicks unit that stopped working. Definitely can go for 3-4 days on one tank fill if you keep it on low. Puts out serious moisture on high, but you will need a fan to disperse it at that level or everything around it will be soaked. This only kicks the moisture stream 2 ft or so.

Great product, works really well and very easy to use. Only problem we have with it is that it is somewhat difficult to clean along the tube where the moisture comes out. Its thin, so if you have a thin bottle brush that could work- but we used a napkin wrapped around a chopstick to be able to reach in there. Other than that, spray a little bit of vinegar in between fillings/cleanings and there should be no gooey buildup for a long time.

This is one of the easiest-to-use humidifiers we have purchased. We use it in our room for rescue cats that have upper respiratory issues, and it helps them breathe much better. It also reduces any potential shocks from petting them in a dry environment. Our only wish for a perfect model would be an option to fill from the top. Other than that, we whole-heartedly recommend it.

Nice looking, but hard to see the water gauge. We use distilled water due to our hard water and don t want to be bothered with scum to clean. We like it because it takes 1 gal. To fill, and is a perfect size to handle. One con, is that you have to lift it carefully off its base, turn upside down, unscrew cap, then refill. We wish it were a top fill design. Also, when taking the tank off it s base, there is water in the base. So you have to carefully carry it to a sink to empty and clean.

We purchased this air inovation humidifier over a year ago and it is the best out of the three different brands that we have purchasd in past years. We bought a cute elephant humidifier for our grandson but when our daughter came over and heard, or nor heard. How quiet mine was, she asked if we would take the elephant humidifier back and replace it with one like mine. It is extremely quite, if you didnt see the mist coming from it, you wouldnt even know it was on. The mist has many levels from low to high which is great when using it in different size rooms. Its definitely a winner.

Arrived on time and was immediately put to use in our room (approximately 150 sq ft). Increase in room humidity is noticeable – no more waking up with dry/raspy throat. Good product, girlfriend also purchased.

Likes: extremely quiet, easy to lift water tank, perfect mist, no obnoxious bright lights, the auto-shutoff works perfectly. Dislikes: not a complaint so much as a suggestion for improvement – make the top less sloped for better stability when refilling. Comment: we tried tap water in the prior one, but filtered water works better for gunk build up and a little white dust. We run this poor little machine every night in our bedroom. Its a trooper.

We purchased this humidifier to use in a bedroom of about 150sf. The bedroom is used as a music room, so holds numerous wooden musical instruments including flutes, guitars, violins, ukuleles, etc. The air in phoenix is very dry most of the year. According to our luthier, the instruments must be kept above 25% humidity at all times, but preferably between 35% and 50%. This humidifier does a great job keeping the humidity at about 40% (it varies from about 36% to 41%) set to about 25% of the full setting. The tank lasts over 4 days in this setting. So far, we haven’t noticed any white dust from the very hard water we have. We had this problem with another ultrasonic humidifier from years ago, but this one doesn’t seem to have a problem with that. We placed the humidifier on the floor on a rubber mat, in case it leaked, but so far, so problem other than some spillage during filling. Overall, we are very satisfied with it. We do wish it had a humidity sensor so it would be set and forget, but for the price it does a great job. Update 04/26/16: the white dust problem is definitely still here with this humidifier. We have very hard water in arizona, so it’s not surprising. However, we have found that if we fill the tank with ro water from the kitchen and use an anti-bacterial additive, the white dust problem is much reduced and we don’t get the brown scum in the base when the water runs out. We have found that scrubbing the base with an abrasive pad every time we fill it seems to help keep the dehumidifier cleaner and reduces the buildup of minerals in the base.

This product was recommend to us by our doctor to assist in keeping our skin hydrated following a procedure. We could not be happier with it. Quiet, will go 70 hours on 1 fill on low- which is perfect for our bedroom size. Our chronic winter dry eyes are also feeling hydrated- highly recommend.

3rd one we have bought. No white film thanks to filter. Using distilled or ro water. Greatly increases room humidity and lasts 24 hrs before refilling. Very simple to use.

Great relief for sinuses. This is the best humidifier we have owned. Quiet, easy to use and no pricey filters. It says you can use tap water, but we used cooled boiled water. One teakettle filled, boil and cool during the day and ready for the night.

With cold weather the interior of our apartment has been dry and uncomfortable. In just a few days tis humidifier brought comfort back to the living room. It is easy to maintain and the level can be adjusted to individual needs.

Does a very good job keeping smaller bedroom humidified. Design is excellent. Very easy to fill, large capacity and easy to carry and mount on base. Probably would do equally well in larger room as well. Good choice .

We put it in the bedroom and only turn it on when we go to bed. Our sleep has greatly improved. It does make a tiny little noise but, doesn’t brother us. We haven’t had it long enough to need to clean it.

This is the best humidifier for our purposes and we love it. It gives off a very fine, cool mist and can be directed where you want it to go. We are very happy, too, that it fits just about anywhere and gives us the much needed moisture we need all winter. Easy to run, easy to clean, and perfect for our dry skin. Excellent product.

Love this, beautiful color, pleasing shape, extremely quiet, and very fine mist. Does not drown your windows. We do wish there was more of a way to “send” the mist in the direction you want as it ends up dropping to the floor. Even though, it does saturate the air with moisture.

Our daughter had one of these and we were a must have. We purchased our own and love it . Puts alot of moisture in the air and no more dry skin. This we would recommend to any one looking for moisture in the winter.

Last update on 2020-09-30 / Affiliate links / Images from Amazon Product Advertising API

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