humidifier PCB assembly electronic manufacturing
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    Humidity acts as a natural moisturizing agent that can relieve dryness. For this reason, humidifiers are often used for relieving:

    On evaporative humidifiers, you will need to perform occasional wick maintenance. To clean an evaporative wick, soak it in cold water for 20 minutes and gently swish it back and forth to release minerals. Never use hot water or chemicals. To avoid mold growth on the filter, pull out the filter and let it dry when you turn the humidifier off for more than a day, or leave it in and let the fan run with no water until the filter is dry. But you can’t clean the same wick forever without the antimicrobial treatment wearing off, so you’re going to have to replace it every six months at a minimum (though this could be as often as every month if you have very hard water).

    Ultrasonic humidifiers do not have wicks, but most do have some kind of demineralization cartridge or treatment that will need to be replaced every so often. Our Sunpentown ultrasonic pick has a $25 cartridge that the company recommends swapping out every six months.

    The evaporative Honeywell is about as effective as any machine at maintaining a comfortable level of relative humidity, but it takes a bit longer to get to that comfortable level than its ultrasonic competitors. This means it’s good to give it a bit of a head start before bedtime if you’re not planning on running it 24 hours a day.

    The 1-gallon reservoir is on the small side, and needs refilling at least once a day—although the same is true of our runner-up evaporative model, the Sunpentown SU-9210, and our pick for large rooms, the Sunpentown SU-4010. At the same time, a larger reservoir carries its own drawbacks. They can be more difficult to clean, harder to fit under smaller sinks, and heavier when filled.

    Why Choose a Whole-Home Humidifier?

    Installed directly to your home's central heating and cooling system, a whole-home humidifier provides whole-home comfort—unlike portable units that only address certain rooms.



    The best way to test humidity levels in your house is with a hygrometer. This device, which looks like a thermometer, measures the amount of moisture in the air. Hygrometers can be purchased at hardware stores and department stores. When buying a humidifier, consider purchasing one with a built-in hygrometer (humidistat) that maintains humidity within a healthy range.

    One of the tough things about not properly cleaning your humidifier is that you're potentially doing more harm than good by shooting bacteria out into the air. If that's your concern, you'll rest easier with the Honeywell Germ-Free Humidifier.

    The main draw is its UV technology that claims to destroy up to 99.9% of bacteria, mold, and fungus that could be lurking in the water. It's easy to clean, too, since all parts are dishwasher safe, and the tank's design allows you to reach in and scrub out.

    One con is that the Honeywell has a filter that needs replacing very few months, and they cost about $11 each. However, some might say that's easier and not much more expensive than having to buy white vinegar for regular weekly cleaning as is recommended for other humidifiers.

    Honeywell Germ Free Cool Mist Humidifier, HCM-350, $69.99, available at Amazon.

    Top of the line

    Amazon
    This one comes in at a higher price point, but you'll get some pretty cool features for the extra expense. For starters, there's a built-in sensor that figures out how much humidity is in the room, and then automatically adjusts based on the setting you specify. When the humidity goes above that level, the Seneo will stop running. The unit also swings 45 degrees each way so that the mist is distributed across the room.

    As for aesthetics, the color-changing night light (seven colors in all), creates a cool lava lamp-like vibe. You can choose one color, or let it rotate automatically.

    On its face, the Pure Enrichment Ultrasonic Cool-Mist Humidifier (2016 update) sure seems popular. But despite its high star rating on Amazon, the authenticity of many of those reviews is questionable. Besides that, its tiny 1½-liter tank means it’s useless for all but the smallest spaces—maybe 125 square feet, a 10-by-12 room. Its (seemingly authentic) negative reviews focus on two other disqualifying factors: It tips over easily, and when it tips, the tank has a tendency to break.

    The Opolar 3.8-liter Ultrasonic Humidifier (2016 update) is intriguing because of its wide fill hole, which the manufacturer claims makes it easier to clean. Cleaning humidifiers is vitally important—see Health risks of a dirty humidifier, above—and our main pick’s ease of cleaning is key to our endorsement of it. Otherwise, however, this is a standard-issue ultrasonic humidifier, and in spite of its higher price, it offers no clear advantages over our ultrasonic pick, the Sunpentown SU-4010.

    If you must have a budget-friendly ultrasonic, the Safety 1st Ultrasonic 360° Humidifier works, which is impressive for such a cheap unit, but its drawbacks keep it from being a pick. It’s not a bad deal for its currently price of about $30, but you’re going to get only that much worth of humidifier. It runs very quietly and is capable of outputting a fair amount of moisture—it raised our test area’s relative humidity by 17.5 percent over our three-hour testing period. But it’s limited by a tiny 0.8-gallon reservoir that will need frequent refilling, and it lacks a mineral filter, which means you’ll have to use distilled water if you want to avoid mineral dust issues (which you do). Also, it has a two-piece reservoir with a small opening (making it hard to clean) and a long list of customer reviews that complain about leaking and other problems.

    The Air-O-Swiss 7135 was an earlier top pick because of its silent operation, humidistat, and prodigious moisture output. Indeed, that it was able to raise an already-moist room’s relative humidity by 34 percent is quite impressive (though it did create a big puddle around the base in the process of doing so). Previously, we put a lot of value into this humidifying ability, but based on feedback we’ve gotten, it’s more than most people need and more than most people want to pay. Its price is already high. Add the highest cost of consumables (water treatments/demineralization cartridges) and electricity ($100 over three years) and you get the humidifier with the highest cost of ownership by far. Plus, its humidistat completely failed to maintain a consistent level.

    Seneo 3.0L Ultrasonic Cool Mist Humidifiers with Sensor Control, Auto Swing, $69.99, at Amazon.

    This article was originally published on
    6.

    Disclosure: This post is brought to you by Business Insider's Insider Picks team. We aim to highlight products and services you might find interesting, and if you buy them, we get a small share of the revenue from the sale from our commerce partners, including Amazon. Jeff Bezos, CEO of Amazon, is an investor in Business Insider through his personal investment company Bezos Expeditions. We frequently receive products free of charge from manufacturers to test. This does not drive our decision as to whether or not a product is featured or recommended. We operate independently from our advertising sales team. We welcome your feedback. Have something you think we should know about? Email us at insiderpicks@businessinsider.com.
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    As for the air washers, Venta recommends refilling water daily to keep the reservoir nearly full, so the rotating disks will be fully saturated, meaning it will be more effective at humidifying. Every 10 to 14 days, drain and rinse the lower housing and disk stack with warm water, wipe the housing and fan blade with a cloth, then fill and add a dose of 3½ ounces of the company’s water treatment additive.

    Note: The additive contains quaternary ammonium cations, or quats, a broad class of disinfectants that have been widely employed for decades. Quats have been linked with increased incidence of asthma, but the conditions that elevate that risk—skin contact, high concentrations, the presence of other cleaning agents, and inhalation of aerosolized quats—are unlikely to occur here. In particular, because quats are nonvolatile and the Venta is an evaporative humidifier, very little vaporization or aerosolization of the additive will occur. Quats are also linked with the development of resistant bacteria and other pathogens; given their heavy use industrially and commercially, the impact of the small quantities used in the Venta is probably inconsequential.

    Every six months, do a deep clean by filling the reservoir, adding Venta’s cleaner, and running on low for two hours, followed by rinsing with warm water as usual. To give the housing a thorough cleaning, disassemble the upper housing (no tools required) and wipe the surfaces with a damp cloth.

    Evaporators blow moisture through a moistened filter. Fans power the unit and expel the humidity into the air from a single-unit system.

    These are more affordable than central humidifiers, but the downside is that they only work in one room at a time. They may also expel too much moisture into the air. This can be problematic for people with asthma, as it raises the likelihood for mold growth.

    Impeller humidifiers
    Impeller humidifiers work with the help of rotating disks that run at high speeds. These units are often less expensive. They’re also among the most child-friendly devices, because they create cool mist and carry no risk of burns.

    Dry sinuses, bloody noses and cracked lips — humidifiers can help soothe these familiar problems caused by dry indoor air. Humidifiers can also help ease symptoms of a cold or another respiratory condition.

    But be cautious: Although useful, humidifiers can actually make you sick if they aren't maintained properly or if humidity levels stay too high. If you use humidifiers, be sure to monitor humidity levels and keep your humidifier clean. Dirty humidifiers can breed mold or bacteria. If you have allergies or asthma, talk to your doctor before using a humidifier.

    The downside is, like evaporators, they only work for single rooms. They can potentially cause breathing difficulties for people with allergies and asthma when they’re overused.


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    Steam vaporizers
    Steam vaporizers are electrically powered. They heat water, and then cool it before expelling it into the air. These are the most inexpensive and portable humidifiers. You can purchase them at drugstores.

    The Honeywell’s evaporative technology (as opposed to ultrasonic or warm mist), avoids problems common to the other methods, like overhumidification, pools of condensed water around the base, and white mineral dust building up on nearby surfaces. The HCM-350 Germ Free Cool Mist Humidifier is easier to keep clean than nearly every other humidifier we’ve tested, because every part that touches water is free of electronic components and lacks the sharp angles that harbor buildup. And the HCM-350 is the only humidifier we’ve found that has a seamless, molded reservoir, which eliminates a problem common in inferior models: leaks. Evaporative humidifiers like this are not the most powerful type, but in less than two hours, the Honeywell reaches and maintains a comfortable level of humidity in a room up to about 400 square feet.

    Runner-up

    Buy from Amazon
    *At the time of publishing, the price was $63.

    Similar, with some flaws
    Sunpentown SU-9210 Digital Evaporative Humidifier
    This costs a bit more than our pick and doesn’t have a one-piece reservoir, but it offers comparable performance should our pick go out of stock.
    If the Honeywell is unavailable, the Sunpentown SU-9210 is our runner-up pick. It performs very similarly to the Honeywell and is easy to clean because it also has no electronic components inside that touch water. It even adds a humidistat (which is accurate, according to our testing). However, the SU-9210 costs a bit more up front, has annoying beeping buttons, and lacks a one-piece reservoir, which could lead to leaks in the long run. Like the Honeywell, its evaporative humidifying mechanism doesn’t have as much power as an ultrasonic model, and it reaches its limit in a room of about 400 square feet.

    Wirecutter senior editor Michael Zhao and Sweethome writer Kevin Purdy have each used a Honeywell HCM-350 for several winters.

    Michael, who lives in a radiator-heated New York City apartment and uses the Honeywell in the bedroom, said, “It’s so easy to clean that I actually clean it. Which is pretty great.” Cleaning is also really important—and ease of cleaning is one of our main reasons for recommending the Honeywell. Michael adds that “it’s annoying that the fan collects dust, but I’ve found that the protective screen comes off cleanly if you give it a good tug with needlenose pliers.” That allows him to wipe the fan off (and reinstall the screen) without much fuss. After moving from an apartment with a standard 8-foot ceiling to one with 12-foot ceilings—a big jump in volume if not area, as both rooms are about 150 square feet—Michael noted an apparent drop-off in absolute humidification, but also notes that the unit is still effective at reducing the symptoms of dry air, such as waking with a dry throat. Additionally, he owns a cat, and has found that the wick collects pet hair; a weekly vacuuming (a 2-minute job) clears that up.

    Kevin and his wife live in a forced-air-heated Victorian house in Buffalo, New York; it gets very dry in the winter, and they also use their Honeywell in the bedroom. Kevin admits to being “an anti-hypochondriac” and “on the far left end of maintenance,” meaning he doesn’t clean his unit with any sense of urgency. He has generally given the Honeywell’s reservoir a scrub with dish soap once a week, and not cleaned the base plate or the filter with any regularity. He also has let water sit in the reservoir for days at a time. He adds: “I have not had anything bad happen to me.” Fine, but honestly, he should follow manufacturer guidelines for any humidifier, or else risk serious illness; in the case of the Honeywell, that includes a daily rinse of the reservoir and base unit, and occasional cleaning and drying of the wick and sterilization of the other wet parts. In terms of the HCM-350’s performance, Kevin says: “It works really well, and it doesn’t look terribly ugly in our bedroom. It hides in a corner and does the job.”
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    Low humidity can increase your likelihood of getting colds, flu and other upper respiratory ailments. Viruses that cause colds and flu thrive in low humidity. And, according to The American Society of Otolaryngology, dry air can make people more susceptible to infection. In addition, drier air can aggravate allergy and asthma symptoms.

    Low humidity can cause home damage. It causes walls, woodwork, and your beautiful hardwood floors to crack. Electronics can fall victim to static electric charges, requiring expensive repair or replacement.

    Low humidity can cause higher energy costs. Low humidity can make you feel too cold at normal temperatures leading you to turn up the thermostat. This leads to higher energy bills.

    Beyond the damage low humidity causes, it makes you uncomfortable. It can cause:

    Bloody noses
    Dry mouth and dry, itchy eyes
    Sore throats
    Cracked, itchy skin
    Painful static shocks
    To learn more about the effects of low humidity on your health and home, watch our Total Comfort Humidification video.

    This type can cause burns, so it’s not the most kid-friendly.

    Ultrasonic humidifiers
    Ultrasonic humidifiers produce a cool mist with the help of ultrasonic vibration. The units vary in price, depending on the size you need for your home. Both cool and warm mist versions are available.

    An ultrasonic humidifier — especially the cool-mist version — is a good choice if you have children.

    Central humidifiers are built into home heating and air conditioning systems and are designed to humidify the whole house.
    Ultrasonic humidifiers produce a cool mist with ultrasonic vibration.
    Impeller humidifiers produce a cool mist with a rotating disk.
    Evaporators use a fan to blow air through a wet wick, filter or belt.
    Steam vaporizers use electricity to create steam that cools before leaving the machine. Avoid this type of humidifier if you have children; hot water inside this type of humidifier may cause burns if spilled.
    Ideal humidity levels
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    Of course, a lot of things are harmful when used improperly. The biggest concern with humidifiers may be operator error—or the fact that most of us don’t keep our machines clean. A past report from the Environmental Protection Agency recommends washing out your humidifier every third day, but Nolen says even that guidance may be too relaxed. “I’d say at least every three days, and every day would be better,” she says.
    She recommends using plain dish soap and warm water, taking care to scrub the sides of your water reservoir to remove any deposits. “Be careful about cleaning agents,” she adds. In 2011, there was an outbreak of lung infection among patients at a Korean hospital. An investigation concluded that “humidifier disinfectants” were to blame. While the types of disinfectants linked to that hospital outbreak aren't likely to turn up in your home, Nolen says you don't want to use harsh chemicals. Again, plain dish soap, hot water, and elbow grease are your best cleaning tools.


    Physicians and other experts often recommend humidity control to prevent the damaging effects of dry air caused by low relative humidity.



    There’s more than one type of humidifier, but at the most basic level, the device emits water vapor into a space to increase the level of humidity. When used correctly, humidifiers can help to alleviate dry skin, chapped lips, nose bleeds and other pesky cold-weather conditions. It can even help to reduce some snoring!

    Are there any downsides to humidifiers?

    The Insider Picks team writes about stuff we think you'll like. Business Insider has affiliate partnerships, so we may get a share of the revenue from your purchase.

    One of the tough things about not properly cleaning your humidifier is that you're potentially doing more harm than good by shooting bacteria out into the air. If that's your concern, you'll rest easier with the Honeywell Germ-Free Humidifier.

    The main draw is its UV technology that claims to destroy up to 99.9% of bacteria, mold, and fungus that could be lurking in the water. It's easy to clean, too, since all parts are dishwasher safe, and the tank's design allows you to reach in and scrub out.

    One con is that the Honeywell has a filter that needs replacing very few months, and they cost about $11 each. However, some might say that's easier and not much more expensive than having to buy white vinegar for regular weekly cleaning as is recommended for other humidifiers.

    Honeywell Germ Free Cool Mist Humidifier, HCM-350, $69.99, available at Amazon.

    Top of the line

    Amazon
    This one comes in at a higher price point, but you'll get some pretty cool features for the extra expense. For starters, there's a built-in sensor that figures out how much humidity is in the room, and then automatically adjusts based on the setting you specify. When the humidity goes above that level, the Seneo will stop running. The unit also swings 45 degrees each way so that the mist is distributed across the room.

    As for aesthetics, the color-changing night light (seven colors in all), creates a cool lava lamp-like vibe. You can choose one color, or let it rotate automatically.

    Seneo 3.0L Ultrasonic Cool Mist Humidifiers with Sensor Control, Auto Swing, $69.99, at Amazon.
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    The most common complaint from Amazon reviews is mold growing on the filter, but this is a problem with evaporative wicks in general and is not unique to the HCM-350. Following the manufacturer’s cleaning guidelines will help eliminate this problem; alternating between two filters every other day, and letting them dry completely between uses, is another safeguard.

    This model also has no humidistat, but as we previously covered, this isn’t a big concern for evaporative models because they are physically incapable of overhumidifying. Besides, out of the models we tested that did have humidistats, only half of them were accurate, so it’s not a terribly reliable feature anyway.

    Finally, there’s the matter of the germ-killing UV bulb, which you’ll note we’ve hardly mentioned, despite it being prominently featured in this model’s marketing materials. Honeywell refers to an “independent report” that tested UV light as being 99.9 percent effective in killing E. coli and other germs after two hours of exposure. Given the slow rate at which water flows through this machine, it’s certainly possible that the bulb is effective at reducing the amount of funk that reaches the filter. Yet, at the same time, it’s not clear that the UV lamp is really effective or well-positioned. It only illuminates a small portion of the water as it flows from the tank over to the filter wick. Overall, we don’t think the UV germ-killing abilities are really a selling point for this humidifier.

    We don’t think the UV germ-killing abilities are really a selling point for this humidifier.
    That being said, some customer reviewers are extremely upset by the fact that replacement bulbs are expensive and must be obtained directly from the manufacturer. We are sympathetic to their indignation. However, considering that the feature is of dubious efficacy in the first place, we think it’s better to just pretend that it doesn’t have this feature at all. An indicator light changes from green to red when it’s time to replace the UV lamp. But frankly, we wouldn’t bother replacing it after the first one burns out after about 3,000 hours, or about four months of daily, around-the-clock use.


    This article was originally published on 6/16/2016.

    Disclosure: This post is brought to you by Business Insider's Insider Picks team. We aim to highlight products and services you might find interesting, and if you buy them, we get a small share of the revenue from the sale from our commerce partners, including Amazon. Jeff Bezos, CEO of Amazon, is an investor in Business Insider through his personal investment company Bezos Expeditions. We frequently receive products free of charge from manufacturers to test. This does not drive our decision as to whether or not a product is featured or recommended. We operate independently from our advertising sales team. We welcome your feedback. Have something you think we should know about? Email us at insiderpicks@businessinsider.com.

    Read the original article on Insider Picks. Copyright 2017. Follow Insider Picks on Twitter.

    Amazon

    Dry air is the cause of so many problems, from stuffy noses and sore throats, to dry skin and cracked lips. Investing in a humidifier can help put more moisture into the air to relieve these symptoms, and more.

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    The water you use to fill your tank could also cause issues. Both the CPSC and the EPA recommend filling your humidifier with distilled water—not tap—to keep potentially harmful microorganisms out of the air you breathe. But a study from the University of Colorado suggests that’s overkill. While the researchers found the water used to fill a humidifier does dictate its bacterial profile, few of the microorganisms they turned up could lead to health concerns. (Worth noting is that they were looking at humidifiers filled with Rocky Mountain water from their state’s Front Range, which has a reputation for being very clean. Their findings might not hold in other places.)

    Assuming you’re good about cleaning your humidifier and filling it with distilled water, you also need to be careful about moisture around your machine. If your humidifier is cranked up so high that it’s surrounded by a scrim of wetness, that’s bad. “Moisture feeds a lot of things we don’t want in our homes, like mold and spores,” Nolen says. “You want to keep the humidity in your home at or below 50%.” (You can buy an indoor humidity monitor for about $10.) If you’re accustomed to running your humidifier at its most powerful, “I can see the mist!” setting, you may want to turn it down.

    A similar evaporative option

    Runner-up

    Buy from Amazon
    *At the time of publishing, the price was $63.

    Similar, with some flaws
    Sunpentown SU-9210 Digital Evaporative Humidifier
    This costs a bit more than our pick and doesn’t have a one-piece reservoir, but it offers comparable performance should our pick go out of stock.
    If the Honeywell is out of stock, the Sunpentown SU-9210 Digital Evaporative Humidifier is another evaporative humidifier we liked in testing. As an evaporative humidifier, the SU-9210 has all the same inherent benefits over ultrasonic models as the Honeywell: lack of white dust and puddling, and general inability to overhumidify. But it’s not nearly as easy to clean as our top pick, which ultimately makes it more difficult to live with.

    Also great

    Buy from Amazon
    *At the time of publishing, the price was $65.

    For larger rooms
    Sunpentown SU-4010 Dual Mist Humidifier with ION Exchange Filter
    Ultrasonic humidifiers are silent and humidify at a faster rate than our pick but can overhumidify if you’re not careful. This one performs similarly to models that cost twice as much and is good for a space 400 square feet or larger.
    For spaces around 400 square feet or larger, consider the Sunpentown SU-4010 Dual Mist Humidifier with ION Exchange Filter. It’s ultrasonic, which means it’s more powerful than our evaporative picks, but this model (like any humidifier of its type) can spread an annoying layer of mineral dust, and can overhumidify a room. This model stands apart with a level of power that matches the leaders in its category and a price that’s roughly half of some competitors. It doesn’t have a humidistat, but in our testing, they usually aren’t that accurate. The SU-4010 is also harder to clean than the evaporative picks because the water tray is full of sharp angles—a shared trait among all the ultrasonic humidifiers we considered

    Dry Air Can Damage Your Family’s Health and Home
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    Too much humidity can be as much of a problem as too little humidity. Unlike portable units, a whole-home humidifier continually monitors relative humidity levels and then delivers the perfect amount of moisture to the air throughout your entire home.


    Aprilaire offers both evaporative and steam humidifiers that introduce humidity into your home's air in the form of water vapor, which prevents minerals from entering the air in your home and potentially into your lungs.

    Maintenance of our humidifiers is easy and infrequent, requiring attention just once or twice a year. Compare that to portable humidifiers that require you to monitor levels in messy tanks.


    Only Aprilaire Offers Fully Automatic Digital Humidifier Control

    You may never have to monitor settings or wait until you feel uncomfortable with the Aprilaire Automatic Digital Humidifier Control.

    Optimum levels of relative humidity in your home will fluctuate with the changes in outdoor temperature. And this set-it-and-forget-it control keeps your home’s humidity level exactly where you want it.


    We took a look at a variety of humidifiers to compile a list of the top models you should consider, whether you plan to use it daily, to help you sleep, or to feel better during a bout of the flu or a cold.

    Humidifiers do more good than bad, as long as you clean them properly. Without regular care, a dirty humidifier could promote bacteria and mold growth.

    You also want to ensure that your humidifier does not make your home too humid. According to the Environmental Protection Agency, ideal indoor humidity levels can vary but “the ideal levels of humidity for your living space will be less than 60 [percent] in the summer and between 25 — 40 [percent] in the winter.” You can monitor the indoor humidity of your home by checking this website, and looking for an increase in condensation, mold or insects in your home.

    How do I clean a humidifier?

    From white vinegar and tea tree oil to using distilled water, there are many hacks to clean your humidifier. The important thing is that you do clean it — regularly.

    What kind of humidifier do I need?

    There are a few different types of humidifiers currently on the market that work best for certain homes or situations. From travel humidifiers to devices that target eczema and psoriasis, we’ve rounded up the best of the best.

    Humidity is the amount of water vapor in the air. The amount of humidity varies depending on the season, weather and where you live. Generally, humidity levels are higher in the summer and lower during winter months. Ideally, humidity in your home should be between 30 and 50 percent. Humidity that's too low or too high can cause problems.

    Low humidity can cause dry skin, irritate your nasal passages and throat, and make your eyes itchy.
    High humidity can make your home feel stuffy and can cause condensation on walls, floors and other surfaces that triggers the growth of harmful bacteria, dust mites and molds. These allergens can cause respiratory problems and trigger allergy and asthma flare-ups.
    How to measure humidity
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    Read the original article on Insider Picks. Copyright 2017. Follow Insider Picks on Twitter.

    dry skin
    sinus congestion/headache
    dry throat
    nose irritation
    bloody noses
    irritated vocal cords
    dry cough
    cracked lips
    You may be prone to these discomforts when the air in your home is dry. This is especially common during winter months or when an air conditioner is being used during the summer.


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