SKU: 55995292967

NewAir Portable Under Desk Heater with Slim Fit Design - 400-watt

Sale price$67.49 Regular price$74.99
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Description

NewAir Portable Under Desk Heater with Slim Fit Design - 400-wattModel: AH 400 (NIH040WH00) UPC Code: 854001004310 The portable under desk heater is your new favorite coworker. This compact heater delivers warmth while you work. Place its slim design against the back wall of any under desk area to maximize space for your precious leg room. Dont worry about disrupting your concentration or your teammatesit is completely silent. It also comes with a tip over kill switch and overheating protection for peace of mind.

Model: AH-400 (NIH040WH00)
UPC Code: 854001004310

The portable under desk heater is your new favorite coworker. This compact heater delivers warmth while you work. Place its slim design against the back wall of any under desk area to maximize space for your precious leg room. Don’t worry about disrupting your concentration or your teammates—it is completely silent. It also comes with a tip-over kill switch and overheating protection for peace of mind.

Key Features:
Slim-fit space heater slides under your desk for head-to-toe warmth.
Totally silent operation never disturbs conversation or concentration.
Radiant heat slowly rises up from the floor to warm up to 40 square feet of space.
400-watt heater uses 73% less electricity compared to most space heaters.
Built-in safety features include automatic shutoff to prevent overheating.

Product Details:
Slim Design is A Real Space Saver
On a cold winter day, a central heating system may not give you the direct power you need to stay warm while you work. This powerful heater fits under your desk to deliver heat directly into your workspace. Its slim frame is designed to warm your entire body and give plenty of leg room to stay cozy and comfortable at your desk.  

Silently Does Its Job so You Can Do Yours 
Stay in the workflow with an under desk heater that operates silently to create just heat and no noise. Don’t worry about disrupting your coworkers or loosing your concentration; it uses diathermic oil rather than a fan to send heat into your personal workspace.   

400-Watts of Efficient Energy to Cut Down Costs
This energy efficient heater uses 400-watts of energy to help you save on your electricity bills. Enjoy additional efficiency features: the oil in the radiator heats up quickly, stays hot for longer, and continues to stay warm after you shut it off. You’ll get lasting heat at a lower cost.  

Smart Safety Features to Heat in Peace
The under desk heater comes with an automatic shut-off function to prevent the risk of overheating. It also comes with a tip over kill switch to turn off the heater, preventing accidents from happening.   

Portable Features to Put in the Perfect Place
If you work from home and an office, you can easily take your portable heater with you thanks to its portable features. The handle allows you to grab-and-go to your next location. Plus, its lightweight body makes it easy to move.

Additional Details:
Great For Offices
The flat panel design of the NewAir AH-400 personal space heater makes it perfect for offices and other tight spaces where extra warmth is needed. Just tuck it under a desk or inside your cubicle to chase away the chill.

Low Energy Cost
This low watt heater features a special diathermic oil that heats quickly and stays warm even after the heater has been turned off. You'll use less electricity to run it without sacrificing function.

Automatic Temperature Control
With an easy-to-use dial thermostat control, the NewAir AH-400 portable space heater lets you select the ideal temperature for your personal space. The heater will automatically adjust to keep you comfortable.

Runs Quietly & Safely
The NewAir under desk heater uses natural convection to circulate air. With no internal fan, it is completely silent when operating so it won't disturb your indoor environment. With the AH-400 you can be rest assured that you, your family and your home are in safe hands with its tip over switch and overheat protection function.

California Residents:
WARNING: This product can expose you to chemicals including styrene, which is known to the State of California to cause cancer. For more information see below.

What is this warning about?
This warning is the result of a unique law passed in California in 1986 called “Proposition 65.” Proposition 65 requires a warning to be included with any product sold in California that may contain any of the 900-plus chemicals that State of California regulators (as opposed to federal and other state regulators) consider harmful. As explained below, failure to provide a warning can result in significant costs and penalties in California.
Are products with this label safe to use?
Yes, Newair products are safe to use as instructed. Our products meet federal and state laws (including California’s) for safety and restricted substances. A Proposition 65 warning is a notification that a product may include a substance on California’s Proposition 65 list. The list is broad, subject to change, and contains substances that are found in products, sold and purchased in California, that are used or consumed in everyday living. For example, warnings have been required for coffee, vinegar, and fish, in addition to many other commonly-used products.
I purchased this product outside of California. Why are you showing this message to me?
Newair products are sold throughout the U.S. to retailers with national distribution. Each distribution warehouse can and does serve multiple states, including California. To avoid the potential Proposition 65 costs and penalties if a product without a warning is brought into California, we decided to include these warnings, regardless of origin of purchase.
If this product is safe, why does Newair include this warning?
For purposes of Proposition 65, the fact that the product meets federal and state safety standards is irrelevant. If there is even a trace amount of a Proposition 65 chemical in the product, it is up to the manufacturer to prove that the amount falls below California’s minimum exposure level. What constitutes “exposure” is poorly defined and the decision is often left to the courts. For a manufacturer, the legal fees to contest a Proposition 65 case are significant. Because providing a warning removes all of these potential costs and litigation risks, Newair and many other manufacturers have opted to provide the Proposition 65 warning.
Doesn't the state of California require evidence of harm to humans prior to posting chemicals on the Proposition 65 list?
No. In fact, California regulators require no evidence of harm or even likelihood of harm to humans prior to placing a chemical on the Proposition 65 list. Instead, evidence from animal testing has been deemed sufficient, even when those tests on animals are conducted with outlandish dosages.
Can a chemical be on the Proposition 65 even if it is considered to be safe by the FDA and EPA?
Yes. There are a variety of examples of products that have been deemed safe by the FDA and/or EPA that are on the California Proposition 65 list. The FDA & EPA have done studies with humans and deemed products safe, but based on the animal testing and extremely high doses, those same products are still listed on California’s Proposition 65 list.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 55995292967

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4.8 ★★★★★
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Verified Purchase
JKJ
Birmingham, US
★★★★★ 5
Fantastic Filters!!
Style: 20x25x1
Great filters for my 5 ton unit- well made and designed for airflow and hold up! Very well! MUCH BETTER than Lowes or HD FILTERS Whistling stopped when I changed to the filters!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
S
Verified Purchase
Susan Eisenhauer
Battle Creek, US
★★★★★ 5
Nice
They are pretty but hard to fasten by yourself.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
S
Verified Purchase
SirTW
Natrona Heights, US
★★★★★ 5
Sleek, upscale and supremely comfortable
Size: 9, Color: Cognac
I did not know that Marc Joseph makes hands free slip ins. I own four pair of Skechers, and I thought they were the only game in town. I decided that I wanted a pair of business casual pair of wingtips. I already own two pair of Skechers Mark Nason wingtips in blue and black nubuck, so I bought a pair of their cognac colored. Perfectly fine shoes, but when they arrived, I didn't like the color, so the search was on! I found these cognac-colored Mark Joseph's and hands down, they fit the bill for what I was looking for! I actually bought two more pair of Skechers in the brown family in the same oxford, elastic lace style: One pair of another style of their Mark Nason line and one pair of their Garza line. So now I am comparing three pair of Skechers to the Marc Joseph's. Obsessive, I know :). Luckily, I have a Skechers store near me for easy returns. The look I was going for is a sleek, business casual that I could dress up or down. Three things that I love about the Marc Joseph's are the beautiful cognac finish: the white yet lower profile soles and the more formal, narrower toe style. The MJ's nailed it with the color. They have a slightly darker, more lustrous and glossier look than the others. The color alone looks classier and pairs well with black pants which I wear for work almost every day. The white soles are exactly what I was looking for. The visible rise is probably about a third of the thickness of the others and are a much more subtle, classier look. They offset the cognac color nicely but are not that in your face, sneaker looking, thick white sole. When I was comparing them to the others right out of the box, I thought they would be too narrow and tight because they looked sleeker and narrower than the others. But they fit perfectly and were very comfortable right out of the box. Upon closer inspection and comparison, I realized the narrower, sleeker look is because the eyelets for the elastic shoelaces are closer together that give the illusion that the shoe is narrower. They compensate for what might create a tighter fit across the top of your foot with two stretchy "gores" they are called on either side of the upper part. The "slits" are nicely finished, and you can't see the stretchy part and add a nice design touch to the shoe. But between them and the elastic shoelaces, they must stretch just enough to make them extremely comfortable across the top. So, if you have a high instep/arch, they should accommodate it nicely. Last but not least, they are very comfortable shoes. I wear a size 8 1/2 to 9 and my foot is slightly on the wide side. I bought the size 9's and they fit perfectly. If you are between sizes or have wider feet, you may want to size up a half size. Because the Skechers have much thicker soles, they might be slightly more cushioned, but the MJ's are cushioned more than enough for my purposes and very comfortable. Plus, they actually just feel better on my feet. I can't speak to how durable they will be as I just got them, but so far, so good. So, there you have it. I rely on other people's reviews a lot when buying online, and especially for shoes. I know it's always a crap shoot, particularly when buying shoes online, so I hope this review helps. Everybody's feet are different, but I highly recommend these.
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Reviewed in the United States on March 15, 2025
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Verified Purchase
Ben
Phoenix, US
★★★★★ 5
Comfortable and look great!
Size: 10.5, Color: Cognac
Very comfortable, look nice, and slip on easily.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
J
Verified Purchase
jacqueline cosey
Los Angeles, US
★★★★★ 5
Great buy
Size: 8.5 Wide, Color: Cognac
True to size. Love the style and feels amazing on your feet... Great item to buy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 26, 2026

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