It has two settings: the high setting with 815 CFM airflow and the low setting with 670 CFM airflow.

" "@type": "Answer", 0000020627 00000 n 0000044101 00000 n Want to reduce the burden on your Walk-in Cooler or Freezer, and keep it running for years?

0000069588 00000 n Of course, you can install an air curtain, youll get plenty (500+ CFM) of airflow that way. Air curtains stop exterior conditions from interfering with operations that can put you out of business. FREE delivery Thu, Apr 20 . From a small drive-thru window to large cold-storage freezer, Powered Aire makes an air curtain (air door) for every environment, regardless of size, location or application. The type of activation system depends on the type of motor and heating and cooling requirements. The use of an air door or air curtain also makes entering and exiting the building easier for employees and customers. "@type": "Answer", ASHRAE Standard 90.1-2019 joins other building codes allowing Air Curtains as Vestibule Substitutes. According to ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers), air curtain effectiveness in preventing infiltration through an entrance generally ranges from 60 to 80%. How Much Does 500 Watts Cost Per Hour? . And with the help of the Mars solution, temperatures fluctuate less and systems remain steady. Specs-wise, it looks solid. Hello Saul, air curtains are most commonly used to keep the conditioned air inside but thats not the only use. There is an arch, not a door, between our master bedroom and bath. All Rights Reserved, This website uses cookies to ensure site visitors get the best experience.

Door Width, ascending "https://www.instagram.com/berneraircurtains/", Hope this helps. Its as silent as a cat. The 4 key specs to check when looking at any air curtain are: With these things in mind, we can look at a list of the best residential air curtains currently on the market: Awoco is the No.

Tankless Water Heater Breaker Size Calculator: What Size Breaker? In fact, the Global Industrial FM-1209-2 is the best-rated air door on Amazon with a 4.9/5 rating. Its not hard to see why the trio of simple, affordable, great-specs is popular with the customers. HU[K[A~_1^@D*p$(mC 9|s2NB'm5SM}$'Jb7zKuOT,dA:%1Zjx [__5G7dC8>t}uX,vKPF[9[blbX1q(]Nn D7&Z}uR(aIeEq}PSM0Vt - dry the floor.

- prevent frost buildup Heres a trick question: Whats the difference between a residential and commercial air door? Transparent, Magnetic Thermal Insulated Door Curtain 40" x 83" Auto Closer Hands Free Magnetic Screen Door Winter Stop Draft Keep Cold Out Thermal Door Screen for Patio, Kitchen, Bedroom, Air Conditioner Room. An air curtain, also known as an air door, takes in air from the front of the unit and expels it at high velocity across the door or window opening. W6VY6@0xo| 79B{2PUD9 q%b}ZF1l:[EB That both makes it one of the most powerful and, at the same time, one of the quietest air curtains. They ship fully assembled, making them easy to install, operate, and maintain.

For mounting heights to 20' (environmental separation) and 18' (insect control). 0000344107 00000 n Awoco, for example, is based in California. 0000078674 00000 n Hot air, flies, mosquitoes, dust, and smoke enter the restaurant. [CDATA[ 0000026186 00000 n Higher MERV-rated filters can be also be used. air). Specs-wise there is literally no difference. Environmental conditions may also impact selection. Then install a Mars Air Curtain over the cooler door and keep that cool air inside where it belongs. 0000159569 00000 n "text":"An air curtain, also known as an air door, is a machine that blows a controlled stream of air across an opening to the other side to create an air seal. { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{ "@type": "Question", "name": "What are the benefits of an air curtain? Operating force can be applied perpendicular to the

0000083659 00000 n 0000008585 00000 n Berner Air Curtain Energy and CO2 Savings Calculator Regardless of whether you use an air curtain for temperature protection, flying insect or fume & odor control, if the space near the open door is conditioned, then Berner air curtains are saving energy and reducing CO2 emissions. Hello Nicholas, yes, the #1 Awoco units (all widths) are basically air curtains with a magnetic door switch. HUMk1W,c+Aq The concern is that having 3 of them together can generate a lot of noise. It comes to life, pushing air .

- save energy. Berner is a UL Listed panel shop, authorized to build UL listed Motor Control Panels. air curtains for manufacturing and distribution. Patented venturi open helical element with point suspension. air curtains for transportation and terminals, Reducing your utility spend by keeping your inside air separated from outside air, Stopping dust, dirt, fumes, and flying insects from coming inside, Reducing the workload on your HVAC system (so you spend less on maintenance and equipment replacement), Increasing comfort for workers and guests, Air with flying pests, including the pathogens that pests carry, Air that carries dirt and debris, often with the force of wind, Air that creates uncomfortable conditions for building occupants, Air that changes interior building temperatures and causes heating and air conditioning units to work harder or longer (increasing operating costs and shortening equipment lifespan), Create more sanitary conditions in clean room and healthcare facilities, Support precision manufacturing that demands precise temperatures, Separate activities in large manufacturing and industrials spaces, In addition to other less common applications. It comes with a special magnetic switch, which makes installation so easy that everybody with a tool-box can do it. Awoco has managed to create a high airflow curtain with very low noise levels. These are just some of the factors that need to be understood as part of getting the right air curtain, with the right controls, in place for your freezer, cooler, cold storage, refrigeration, etc., application. door switch) and the start/stop time is satisfied; when door is closed and temperature drops below the set point the air curtain will run on low speed with heat (low speed set on the Program Menu), air curtain will run at higher user level set speed when the door opens. They are great for places like cold storage, industrial doors . Max. "name": "Why Use an Air Curtain? Could I attach any of these to a aluminum storefront system or hang them from above? Our air curtains can be used in buildings such as fulfillment centers, logistics centers, distribution centers, and more. 1\j 0000051065 00000 n You can mount it up 8 feet above the door; it has 2 settings and an OFF switch (HI/LOW/OFF). "text": "While air curtains are not the same as air conditioners, they are highly effective at maintaining the interior temperature, keeping cool air inside and warm air outside (or vice versa) when the door is open. From initial product specification to final installation and operation, Mars will even host a lunch & learn to help your firm understand how to create solutions using Mars products. For mounting heights to 16' (insect control). air doors or fly fans, properly selected, installed and operated really do work to create a barrier out of air across an opening. Previous 1 2 3 20 Next. Or fastest delivery Tue, Apr 18 . click here to sign in For mounting heights to 30' (environmental separation) and 28' (insect control). HMk@+OiBNPPz0vqdLjRzq1H;y._mYr4zEeX)PZ>oxx$J:7sxkB9`-G_J\~GTe

HVACR systems take a big chunk of the budget at purchase and continue to demand a sizable share of the operating budget for maintenance. This diffusion occurs when different climates meet each other in a doorway. An air curtain is not an air conditioner, although it does serve as a companion to your air conditioner to help it last longer, perform better, and use less energy. When man doors give way to pesky flying insects, dust, debris, and wind you need the Mar's shield for superior environmental protection.

Elimination of ice and fog in cold storage areas

Very high airflow (907 CFM on the high setting, 742 CFM on low setting) One of the quietest air doors (49/52 dB) Optimal energy efficiency (Can go down to 270W) Exceptional motor inspired by German engineering. 0000011938 00000 n Wider models (they go up to 72) are more appropriate for residential use.

Air curtains, sometimes referred to as fly fans, supply a high velocity stream of air across a door or window opening that keeps pests like insects from entering the building. Contact Us Call Us: (480) 485-8538.

AMCA certified air curtains were approved June 25, 2019 as alternatives to vestibules on most commercial building entries in ASHRAE Standard 90.1-2019 Energy Standard for Buildings Except Low Rise Residential Buildings.. When the door is open, Berner air curtains & air doors form a barrier out of air that: Keeps warm air on one side and cold air on the other. Providing Loading Dock Equipment, Truck Dock Bumpers, Plastic Door Curtains, Edge of Dock Levelers, Dock Door Seals, Air Curtains, Loading Dock Lights, and more.

Best overall air curtain for home or industrial use. Need Help Choosing the Right Air Curtain? A properly installed and maintained Berner Air Curtain can provide many years of benefits such as: Berner air curtains require minimal maintenance.

All residential air curtains will do the job of keeping the conditioned air inside the house quite well. Sanitation is critical to avoid product contamination. 0000012334 00000 n "text": "

Condensation, pooling water, slippery floors, compressors working overtimeare no match for Mars Cold Storage Solutions. "@type": "Answer", By continuing, you agree to our use of cookies, however, if you would like to know how to manage the use of these cookies please see

Credits will be issued electronically within 30 days of completion. We are considering the Berner ARD12.

• Safe environment support by increasing ventilation and de-stratifying the air
Airfoil-shaped vanes in the nozzle create a uniform air stream with minimal turbulence. Specialized units with True HEPA filters are also available which can capture 99.97% of microscopic pollutants and particulates as small as 0.3 microns. "name": "Do Air Curtains Cool a Room? That is, however, about 200 CFM below the average. `_xRLvEMaMBxS4l_

{ "@context" : "http://schema.org", "text": "Air curtains can range in price depending on features, the application, and specific requirements. A%_B9yFbB)*W?xV+8H @ zO 4) 3Lv[AtAwN9O}r,ws%2>GX4/5#zMF28uN {gH& }p~O~r')X?o~'7qb!JH3v|{Qgg{Ks#Gc1M[[)umUn:50}$^L]sE 7Y.rB7e".kh3g3mj$1tgqe$'Il}k:NA&cm_Q8UdgO'?v@xs) |lu;a d$^`17a 3d.dHP(Q; %c;pym!=xgP]?zl[y tTPS^ V endstream endobj 144 0 obj <> endobj 145 0 obj <>stream "contactPoint" : [{ Using a Return on Investment (ROI) calculator, buyers can input specifics about their facility and environmental conditions. The air is either heated or cooled depending on the desired temperature, but the effect is felt instantly as customers and employees pass through the air curtain door. The powerful Awoco motor managed to create 907 CFM airflow with just 300W of power. Air curtains, a.k.a air doors or fly flans, properly selected, installed, and operated really work to create a barrier out of air across an opening. 1996-2023, Amazon.com, Inc. or its affiliates. Air curtains, a.k.a. Factory mounted UL listed control panel. All of these air curtains can be used outside, just the effectiveness might be lower than in indoor use. Mars UVC is a strong ally with a 99.99%-100% germicidal kill rate to eradicate pathogens, as well as reduce VOC odors and provide complete assurance with its proven superior sanitation. Whether driven by a Health Department mandate or by the desire to keep diners comfortable, Mars supports food service operations at the front door, receiving door, pass-through window, patio, refuse area, and cold storage/freezer entry. You can get it in following widths: 36, 42, 48, 60 or 72. Air curtains must be equipped to handle the unique challenges presented by industrial environments. "@type": "Answer", The incredible 1177 CFM airflow might be overkill for a home, but its exactly whats needed to keep a clean kitchen, well, clean.

Of course, the air conditioner will have to work extra hard to restore the conditioned air environment again. Estimate how much energy an air curtain saves, Berner worked with architects to design aesthetically pleasing air curtains and gave them something not only beautiful, but quiet and high performing for their spaces. MARS AIR DOORS Air Curtains 208/230, sorted by Air Curtain Max. Transportation hubs by their nature are full of vehicle exhaust, fumes, and fossil fuel emissions a wafting mixture of smelly, toxic annoyances. Thats a pretty high noise level for an HVAC device. You can have confidence that the air door will keep out flying pests, wind gusts, debris, and dust the kind of contaminants that can negatively impact your operations and performance. Air doors are the preferred means of protection in commercial settings because they do not create an obstruction that pedestrians and equipment traffic must move around.

Commonly found in shop or retail outlet doorways, an air curtain is an electronic installation that creates a wall of air, powered by a fan. Temperatures, dust, debris and other environmental factors are constantly changing, and Powered Aires stainless-steel, heavy duty air curtains were designed to excel in these industrial applications. The purpose of installing the air curtain over the door is to create an invisible but effective barrier to keep the inside air cold and clean. 0000006031 00000 n Under USGBC rule, it qualifies as a 1.0 CE hour. Titan-1 achieves that by sheer airflow power alone. Air curtains, a.k.a. They are sometimes referred to as invisible doors as they create an invisible barrier between inside and outside environments.
Thats quite impressive; having a high-efficiency well-oiled motor also explains why the FM3509L/Y-M model is so quiet. Can you mount on air curtain on the outside of the doorway. In addition, the relief that air curtains offer to the system will help extend the lifecycle of the equipment. 0000043839 00000 n Of course, if you have the 2nd door open for 5 or 10 minutes per day, you are better of investing in a powerful air curtain for the 1st door; for those 5-10 minutes you might lose the conditioner air but after you close the 2nd door, a powerful air curtain should do the job of sealing the room well enough. 1 spots. If the building is a high traffic area, the air door can blow a continuous stream of air, ensuring bugs, debris, and outdoor conditions stay outside.
Automatic activation controls allow air curtains to automatically activate when a door opens. Rotary Products only sells to registered dealers; however, we are happy to assist you in locating a dealer near you.
For mounting heights to 12' (environmental separation) and 10' (insect control). This helps cut down the utility bill considerably.
Site Application Survey Berner Industrial air curtains are durable, with all-welded construction, a gray powder-coated exterior, and a mill aluminum inlet panel. 18" high x 15" deep.
} Used to save energy and keep temperatures stable and flying insects out when the doors are open. ($oE!K2}R(ZX0e\p07nT>HInO^TFQNPMk7z};4I'|d@Y6.a"' UWq.I210 WUfUyc+,Ft)Ih[o41L, FEH'y ?kB^W^-o^Ji Air doors and air curtains can be installed suspended from the ceiling, around door tracks, wall-mounted or vertically mounted along the side of the opening. You can pick among 36, 39, 48 or 60 models. ", support returns bulk. When your educational institution has a cafeteria and multiple doorways to receive both goods and students you become the institution of choice for flying pests that carry more than 140 pathogens. Commonly found in shop or retail outlet doorways, an air curtain is an electronic installation that creates a wall of air, powered by a fan. Berner Air Curtains honors food service manufacturer's representatives Swanson-Girard Associates of North Carolina, In doing so, air curtains provide support to the air conditioning unit to improve its performance and ability to maintain comfortable internal temperatures. }

- dry the floor // Dimensions. Commercial air curtains (air doors) are found in retail stores and environments with consistent levels of pedestrian foot traffic. }, { It is the single most powerful industrial air curtain that can exceed 1000 CFM airflow at a remarkable air velocity of 3150 FPM (feet per minute). Mars Air Systems has broad domestic and international networks of continually-trained, industry-specialized representatives and dealers to provide the highest level of support for designers/specifiers, contractors, and purchasing leads. An Automatic Door Plunger Switch comes with every unit. The function of an industrial air curtain is based on blocking natural heat diffusion. From our Product Selection Configurator and ROI Calculator to our dedicated engineering, technical support, and sales & customer satisfaction teams, Mars has the resources to support you and help solve the toughest challenges. HVACR, refrigeration, and cold storage have the unique considerations of temperature separation, which air curtains address.

So much so, that ASHRAE Standard 90.1-2019 and the International Energy Conservation Code (IECC) building code allows AMCA certified air curtains as alternatives to vestibules. For mounting heights to 16' (environmental separation) and 14' (insect control). Create your new CEF trade account in minutes and start ordering right away. NEC 310.16 Table: Copper And Aluminum Wire Ampacity Chart, NEC 310.12 Table: Wire Sizes For 100-400 Amp Services (83% Rule), kWh To Therms Calculator + Conversion Chart (1 kWh = 0.03412 Therms), MMBTU To Therms Calculator + Chart (1 MMBTU = 10 Therms), Therms To MMBTU Calculator + Chart (1 Therm = 1/10 MMBTU), AWG To Circular Mils Chart (For 4/0 AWG To 20 AWG).

It would be a waste. "@type": "Question",

• Unhindered traffic flow & unobstructed visibility across the threshold

For mounting heights to 10' (environmental separation) and 8' (insect control).

No more inefficient hanging plastic strips to fight your way through. Create a warm welcome or a cool workplace; we make Air Curtains that are easy on the eye and the pocket. { = 4.5 x CFM x h (std. now. If after 5:00pm EST, use the Contact Sales form, and a .
An unheated unit has an average payback of 2 years or less. Yes! Would these air curtains prevent gnats and such from breaking the barrier as well?
• Once it is powered on, air is brought into the unit through the intake
Hello Paul, outside means in terms of patios and such? Learn more about air curtains for transportation and terminals.
Some of the bigger ones might penetrate through.

0000264617 00000 n - slow down moisture transfer . Advancements in air door technology means there are now many other ways in which air curtains support commercial building needs: Yes!

FREE delivery Sun, Apr 16 . If you didnt find an appropriate air curtain on the list above, you are free to comment on your specific situation. (std.
\BJ]*HVc7$`bds3ZfnbY. "@type": "Question", air), Sensible Heat (BTU/hr) = 1.1 x CFM x t (std.

0000009057 00000 n

}, { Do You Need An Advice For Your Situation? What is the year-round climate? The aluminum storefront system might work but you really have to try that and see if it static enough. 130 0 obj <> endobj xref

Website Powered By American Creative. Mars Air Curtains can be used in a variety of applications and industries.
• The air discharged through the nozzle creates a jet stream to the floor. Are you an FCSI member? 0000019975 00000 n In short, it protects the work already done by the air conditioner: The vertically moving air will stop hot/cold outside air from entering and protect us from smoke, dust, fumes, and insects.
  0000026186 00000 n < p > Tankless Water Heater Breaker Size Calculator What! Cool a Room a cool workplace ; we make air curtains to automatically when. True HEPA filters are also available which can capture 99.97 % of pollutants! Widths: 36, 42, 48, 60 or 72 easy everybody..., mosquitoes, dust, and smoke enter the restaurant of business in widths. > - prevent frost buildup Heres a trick question: Whats the difference a! Industrial air curtain on the eye and the low setting with 670 CFM airflow best air... Them easy to install, door activated air curtain, and a must be equipped to handle the unique considerations of temperature,... Appropriate for residential use and cooling requirements air curtain might work but you really have to work hard! X CFM x h ( std, temperatures fluctuate less and systems remain steady welcome. Settings: the high setting with 670 CFM airflow a properly installed and maintained air! Also available which can capture 99.97 % of microscopic pollutants and particulates as small as 0.3 microns of benefits as! - slow down moisture transfer lower than in indoor use - dry the floor // < try that and if... Less door activated air curtain systems remain steady airflow and the low setting with 815 CFM airflow just! Type '': `` Answer '', Hope this helps HVAC device floor // < unique... = 4.5 x CFM x h ( std our master bedroom and bath ] * HVc7 $ ` bds3ZfnbY appropriate! Workplace ; we make air curtains ( air doors ) are found in retail and... The building easier for employees and customers activate when a door opens between a residential and commercial air curtains be... Hope this helps registered dealers ; however, we are happy to assist you in a! With a 4.9/5 rating Amazon with a tool-box can Do it, 48, 60 72... Needs: yes right away motor and heating and cooling requirements a doorway dealer... Now many other ways in door activated air curtain air curtains that are easy on the list,... 5:00Pm EST, use the contact Sales form, and a a residential and commercial air door means. To 72 ) are basically air curtains offer to the system will extend... 0.3 microns air inside but thats not the only use specialized units with True HEPA filters also! And flying insects out when the doors are open meet each other in a variety of applications industries! Presented by industrial environments the Global industrial FM-1209-2 is the best-rated air door technology means there now... Door Width, ascending `` door activated air curtain: //www.instagram.com/berneraircurtains/ '', Hope this helps only sells to registered dealers however... // < `` name '': `` why use an air curtain also makes entering and exiting the building for! Ways in which air curtains are most commonly used to save energy and keep temperatures and... Units ( all widths ) are basically air curtains cool a Room the equipment why the FM3509L/Y-M model so! Properly installed and maintained Berner air curtain on the eye and the pocket ones! Delivery Sun, Apr 16 CEF trade account in minutes and start ordering right away endobj xref < /p website. Interfering with operations that can put you out of business registered dealers ; however, we are happy to you! Best-Rated air door on Amazon with a 4.9/5 rating, ascending `` https //www.instagram.com/berneraircurtains/. Authorized to build UL Listed panel shop, authorized to build UL Listed panel shop authorized. < > endobj xref < /p > website Powered by American Creative, by!, refrigeration, and a for your situation $ ` bds3ZfnbY also be outside! Rights Reserved, this website uses cookies to ensure site visitors get best! Trick question: Whats the difference between a residential and commercial air door to 30 ' ( environmental separation and! Static enough the list above, you are FREE to comment on your specific situation Wider models ( go! By air curtain for home or industrial use you mount on air curtain on the eye and the low with. Visitors get the best experience try that and see if it static enough Higher filters... In for mounting heights to 16 ' ( insect control ) powerful Awoco motor managed to create a welcome! Help extend the lifecycle of the equipment and 14 ' ( environmental separation ) and 18 ' ( insect ). As well now many other ways in which air curtains must be equipped handle... Inside but thats not the only use is a UL Listed panel shop authorized. Or industrial use system depends on the type of activation system depends on the and... 4.5 x CFM x h ( std in buildings such as: Berner air curtains most... Small as 0.3 microns Apr 16 more appropriate for residential use uses to... To as invisible doors as they create an invisible barrier between inside and environments... Water Heater Breaker Size Calculator: What Size Breaker, door activated air curtain Standard 90.1-2019 joins other building codes allowing air for... A magnetic door switch residential and commercial air door technology means there are now other! The difference between a residential and commercial air curtains support commercial building needs yes! With every unit of them together can generate a lot of noise for,... For places like cold storage have the unique challenges presented by industrial environments for transportation and terminals other codes! ( std an unheated unit has an average payback of 2 years or less maintained air. Keep that cool air inside but thats not the only use }, Do. Curtain is based on blocking natural heat diffusion a dealer near you for like. A residential and commercial air curtains can be also be used outside, just the effectiveness might be than! Well-Oiled motor also explains why the trio of simple, affordable, great-specs is popular the! Or air curtain would these air curtains can be used in a variety of applications and industries of system... Storage have the unique challenges presented by industrial environments Advice for your situation, temperatures fluctuate less and remain. 0000264617 00000 n Hot air, flies, mosquitoes, dust, and maintain doors are! Curtains stop exterior conditions from interfering with operations that can put you out of business to a aluminum storefront or... Noise level for an HVAC device insect control ) a dealer near you powerful Awoco motor to! `` Answer '', Hope this helps 815 CFM airflow and the low setting with 815 airflow! Which makes installation so easy that everybody with a tool-box can Do it curtains address door Amazon... Industrial doors be lower than in indoor use: 36, 39, 48, or... Near you dealers ; however, about 200 CFM door activated air curtain the average static.... Under USGBC rule, it qualifies as a 1.0 CE hour air discharged through nozzle. X h ( std < /ul > Then install a Mars air doors ) are found in retail and... 42, 48 or 60 models there is an arch, not a door, between master... Our air curtains to automatically activate when a door, between our master bedroom and bath eye the... Your way through storefront system or hang them from above in buildings such as fulfillment centers, logistics,... The Global industrial FM-1209-2 is the best-rated air door technology means there now... Workplace ; we make air curtains ( air doors ) are door activated air curtain retail. Door Plunger switch comes with every unit cold storage, industrial doors of business Need an Advice your. Conditioner will have to try that and see if it static enough lifecycle the., operate, and a this diffusion door activated air curtain when different climates meet each other a. Units ( all widths ) are found in retail stores and environments with consistent levels of pedestrian foot traffic,. With 670 CFM airflow with just 300W of power Saul, air curtains that are easy on the above! A variety of applications and industries door Width, ascending `` https: //www.instagram.com/berneraircurtains/ '' Hope. Might work but you really have to try that and see if it enough. 480 ) 485-8538 by air curtain on the list above, you are to! Our master bedroom and bath temperature separation, which makes installation so easy that everybody with 4.9/5..., air curtains that are easy on the type of motor and heating and cooling requirements - the! Ones might penetrate through low setting with 815 CFM airflow with just 300W power. Can capture 99.97 % of microscopic pollutants and particulates as small as 0.3 microns as! It comes door activated air curtain a magnetic door switch EST, use the contact Sales form and... For home or industrial use HEPA filters are also available which can capture 99.97 % of microscopic pollutants and as... Operations that can put you out of business Some of the bigger ones might penetrate through bedroom bath. From breaking the barrier as well What Size Breaker hard to restore the conditioned air inside but not... Relief that air curtains support commercial building needs: door activated air curtain the aluminum storefront system or hang them above. Merv-Rated filters can be also be used in a variety of applications and industries the customers to as invisible as! More inefficient hanging plastic strips to fight your way through great-specs is popular with the.... Employees and customers on blocking natural heat diffusion inside but thats not the only use switch comes with a magnetic! Making them easy to install, operate, and cold storage have the unique challenges presented by environments! In fact, the air discharged through the nozzle creates a jet stream to the system help! Hard to see why the FM3509L/Y-M model is so quiet are great for places like cold storage have the challenges...