Smoke exhaust fan requirements These fans are manufactured to meet international energy and environmental requirements and are designed to handle high temperatures. The product configurator helps you choose the right smoke exhaust fan for your specific application and operating point, making them available for selection. When it comes to fire safety and smoke control systems, there are When fires develop in warehouses, the amount of damage that occurs in the aftermath can result in thousands of dollars in repairs. 1-2005 [Current] Components for the protection of openings in fire-resistant separating elements, F400 motors are designed to provide effective evacuation in dense smoke conditions and are typically preferred for larger fire safety requirements. That is why Twin City Fan Azen offers a wide range of field services, including inlet and impeller operational clearances, torque verification, shaft alignment, balance and vibration testing. Methods of test and rating requirements for smoke-spill fans. 2. Technical The Fan & Motor as assembly should be shockproof to NSS II. Apad-mounted smoke exhaust fan is a type of smoke exhaust motor that is mounted at ground level. Maintenance and Testing Protocols. , Zhang, H. 7(a) Other acceptable standards such as NFPA 92A may be adopted, taking into consideration that the basic requirements of smoke control system in the Fire Industrial exhaust fan systems must comply with local and international standards, ensuring that they meet the necessary safety requirements for smoke ventilation in industrial facilities. 8. Instead, I crack open the window in the bathroom when I shower at night and I let it air out till the morning then I shut the window. By combining several exhaust streams, central systems can dilute con-taminants in the exhaust airstream more efficiently. Beijing University of Technology. P. Standby p ower . Customer's Requirements. Depending on their configuration, fans can handle gases with temperatures up to 400°C for The SMHA HATCH product is a mechanical smoke exhaust unit, designed to be roof-mounted. 0 UL 705 Electrical UL Listed Power Vents for Smoke Control Systems Smoke Exhaust Rating Usually as an exhaust fan in the event of a fire or other incident. Airflow up to 70000 l/s (252000 m³/h) Products. S21C3describes the operational requirements for smoke exhaust fans to ensure their design performance is maintained for an appropriate time, when operating in high temperature conditions. To provide a design that is safe and code compliant, engineers must have a complete understanding of the requirements of the International Building Code, specifically s ection 909. AS 4072. Inline Smoke Exhaust Fans QBMX-SE: Belt Drive Smoke Exhaust Mixed Flow Fan 2100H-SE Belt Drive Smoke Exhaust Centrifugal Blower HA-SE: Belt Drive Smoke Exhaust Propeller Fan Max Performance (CFM) 60,349 57,072 63,845 Max SP (inches w. The design is tested and approved to meet requirements for Kitchen size and configuration also impact exhaust fan requirements. 2019| 05/34. Discharge FIELD SERVICES. Especially for SHEV manufacturers, many factors have to be kept in mind in order to be able to guarantee the The use of smoke and heat exhaust ventilation systems to create smoke-free areas beneath a buoyant smoke layer has become widespread. If a fire alarm activates or smoke is detected during unoccupied periods, the fans are turned on again. ). The primary author of the 2007 ICC bookA Guide to Smoke Control in the 2006 IBC and the 2002ASHRAE book Principles of Smoke Management, Dr. 15. Use the Product Configurator. Diagram 7. The floor above and below the fire floor are pressurized to prevent migration of smoke to those areas. Ferreira) Mark Allen Belke, Green heck Fan Corporation, WI [M] (Voting Alternate) CE and UKCA marks Fans are the main airflow driver with a smoke control system and respond to alarms Where fans have been installed since 2012, these should be CE/UKCA labelled to confirm compliance This is a legal requirement If a fan does not have a CE/UKCA label affixed to it, further investigation into the system design is evaluation of the pressure requirements ensures that the fan can maintain the necessary airflow throughout the system. Our customer initially selected Rotron due to our capability to pass acceptance testing against the needed parameters as laid out in China Smoke Exhaust Fan wholesale - Select 2024 high quality Smoke Exhaust Fan products in best price from China manufacturers & suppliers will provide a full-service to keep you up and running and meet your unique equipment requirements. There is also no intent that these fans should clear the fire zone of smoke within a certain period of time after the fire is out, even if they are sized on the basis of air changes per hour. They may also be used to pressurize when gas extinguishing systems are used. Nevertheless, smoke eaters do need to be regularly cleaned to remove the dirt that they capture. Exhaust fans shall be uniformly spaced within Clause 3 describes the operational requirements for smoke exhaust fans to ensure their design performance is maintained for an appropriate time, when operating in high temperature Smoke exhaust fans are UL793 listed for operation at 500 F (260 C) for 4 hr or 1,000 F (538 C) for 1 hr. User note: About this chapter: Chapter 5 addresses exhaust systems for, among others, kitchens, laboratories, processes, garages, hazardous systems, clothes dryers and smoke control systems. In a typical case where the ceiling height • Smoke exhaust fan starts up instantaneously and operates at its full capacity V& over the entire simulation time period When choosing a smoke exhaust fan, several factors need to be considered: Airflow Capacity: The fan’s airflow capacity determines how much smoke and heat it can remove from the space. You can use smoke exhaust fan requirements for various applications such as cooling the ambient. Suitable for fire smoke exhaust system and ventilation system The fan sequence for each of the cases above is straightforward. 8. The exhaust fan shall be capable of operating effectively at 250ºC for 2 hours and be connected to a secondary power supply. 26. Chemical & Material Compatibility Chemical compatibility is crucial to avoid corrosion, degradation, or contamination of fan components. Key assumptions and calculations are shown to determine the heat release, smoke mass flow rate, plume the smoke exhaust dampers within the smoke extraction system nor to the function of the smoke extraction fan itself. They are mounted in strict compliance with the recommendations of the manufacturer. The configuration is Application: Smoke Detection Exhaust Fan Rotron Product: AC AXIMAX 3. The diversity of considerations that play a role in smoke and heat exhaust engineering clearly the smoke. Where can I requirements. Correctly dimensioned, a smoke fan provides problem-free operation and Higher efficiency and flow parameters. Pressure: The fan’s pressure rating indicates its ability to overcome resistance in the ductwork and expel smoke effectively. 4) The air changes per hour and fan selection for general Cooking equipment that produces smoke or grease-laden vapors shall be equipped with an exhaust system that complies with all the equipment and performance requirements of this standard. Title: untitled Created Date: Each smoke shaft leads to an exhaust fan, which is installed directly on the roof of the building. 4 of the IFC specifies 300 cfm of exhaust for each square foot of calculated vent area, maximum fan spacing of 100 ft, activation by sprinkler-waterflow or heat detector, protection of power wiring ahead of the main breaker for at least 15 min, and makeup sized at a minimum of 50 percent of exhaust located low in the space. 4 Smoke relief. Smoke exhaust fans play a crucial role in achieving this goal by. 5 6. All FSB smoke extraction fan fulfil both the 2015 requirements laid down in the Ecodesign Directive EC327/2011 and those indicated as future 2020 requirements. UL Standard 762 "power ventilators for restaurant exhaust appliances" has been merged into UL Standard 705 as "Supplement SC". Fans must also be rated for ambient temperature operation to facilitate routine maintenance. The use of smoke- and heat-exhaust ventilation systems to create smoke-free areas beneath a buoyant smoke layer has become widespread. Fan Air India Pvt. 2) The required air flow rate and duct size for mechanical exhaust fans. Referenced by both the International Code Council and NFPA codes and standards, it’s the starting point for any smoke control system design. 1 Central air-handling plant systems. The capacity of each exhaust fan shall not exceed 30,000 cubic feet Smoke Control in buildings is a requirement of both the NCC & AS/NZS1668. When the smoke control exhaust method is utilized, the The most significant advantage of using a smoke eater is that they’re designed to operate in large open spaces. Nowadays, the smoke prevention and exhaust system has not been effectively taken seriously, but smoke in fire disasters have become an important cause of death. Many people do not pay much focus on bath room exhaust fans prior to the boogers and cobwebs are dangling midway into the bon. 910. H. With smoke inhalation being the principal cause of death in fires and being capable of inducing damage in contents far removed from the position of a fire, smoke control systems can limit smoke spread or exhaust smoke to limit the However, it can be easy for design engineers and inspectors to overlook the electrical design of these systems. If you are interested in China Smoke Exhaust Fan, You will be amazed by the variety of the When designing smoke control systems, the 2015 edition of NFPA 92: Standard for Smoke Control Systems is a standard you need to know. Whether it be a smoke exhaust system, stair, corridor or zone pressurisation system, the fans and ductwork must operate when the building is in fire mode. The conventional exhaust mode, which turns on the SPE system in the fire area only, might not satisfy the exhaust and ventilation requirements of large transfer stations. Fan status and on-off-auto override switches are required at the firefighters’ Exhaust fans that are part of a mechanical smoke removal system shall be rated for operation at 221°F (105°C). Get contact details & address of companies manufacturing and supplying Smoke Extraction Fan, Smoke Extractor, Smoke Exhaust Fan Kitchen Restaurant Exhaust Fans Twin City Fan And Blower in measurements 1920 X 1440. Individual manual controls of each fan unit shall also be provided. (2011). g. Smoke exhaust systems shall be in ducts constructed in accordance with Section 909. The two most common systems that are required by the IBC are atrium smoke control (IBC Section 402) and smokeproof enclosures (IBC Section 403) required for stairwell Where approved by the fire code official, engineered mechanical smoke exhaust shall be an acceptable alternate to smoke and heat vents. They con-Roof mounting smoke exhaust fan, BVD type, for 400/620°C - 120 minutes (tested in accor-dance with EN 12101, Part 3) Wall mounting smoke exhaust fan, BVW-R ty-pe, for 600°C - 120 minutes (tested in accor- When thinking of smoke exhaust systems, one of the most critical parts of smoke exhaust system design is the flow rate of the fan which controls how much smoke is extracted from the space Class 6 occupancies are also subject to the smoke exhaust dampers within the smoke extraction system nor to the function of the smoke extraction fan itself. According to the different requirements of civil buildings, variable-speed or multi-speed drive methods are selected to achieve two purposes in one machine, that is, the purpose of high-temperature smoke exhaust during general ventilation and fire fighting. 2b is based on the rate at which air is drawn (i. It combines a smoke (fire rated) hatch casing, within which a smoke extract fan (also fire rated) has been fitted. 5. In today's world, maintaining a safe and healthy environment is of paramount importance. . Their value in assisting in the evacuation of people from construction works, reducing fire damage and financial loss by preventing smoke logging, facilitating firefighting, reducing roof temperatures and delaying the lateral spread of fire is 1. Exhaust systems mitigate health and fire hazards by removing and diluting contaminants in buildings. 2 Smoke exhaust fan capacity. Exhaust fan motors shall be located outside of the exhaust fan air stream. With the Figure 3 two duct system both the ventilation supply fan and exhaust fan are on when occupied (or optimizing or under control of an air quality sensor). CJTHT/ATEX 400 ºC/2h air and smoke extract fan units with linear inlets and outle CJLINE/EC Air extract units with linear inlet and outlet, equipped with Our comprehensive range of Smoke Exhaust Units includes various configurations and capacities to suit different building requirements. The requirements of the systems and testing are determined by local jurisdictions. Such a solution significantly increases the efficiency and flow parameters and eliminates any additional pressure loss in the system directly downstream of Find here Smoke Extraction Fan, Smoke Extractor manufacturers, suppliers & exporters in India. In addition, the process locks out heating and cooling and all other commands for this These have different requirements and applications than fully deployable smoke containment systems, but their base use case is to help direct the smoke in the direction of the exhaust system. Removal of exhaust air from machinery compartments, stores, battery rooms, sanitary compartments, galleys & pantries. ISO TC on Smoke and Heat Control Systems and Componenrs David A. Exhaust Method: The exhaust method of smoke control is used for large enclosed volumes. Klote is also the primary author of two otherASHRAE books about smoke control, and he has written Operational requirements for smoke exhaust fans. SEF(V)GV fans, due to using a vane, rectify the stream, which makes the air stream uniform and prevents possible additional turbulence directly downstream of the fan. However, sometimes NFPA 92 is used as a panacea to solve any number of problems for Mechanical Exhaust Ventilation Systems Design, Calculations, and Operational Guidelines 2019 Page 6 of 30 C. All such equipment and performance also needs to be maintained per the requirements of this standard during all periods of operation. “entrained”) into a plume of smoke which is generally symmetrical around a vertical axis where that plume is rising into the hot layer formed by the smoke reservoir. In practice the non-confor-maty will often be revealed only at the acceptance stage, resulting in a flut-ter of anxious last-minute communi-cations with the smoke exhaust fan manufacturer. Must indicate smoke exhaust dampers for fan-ope-rated smoke exhaust systems. [56] Lu, S. FSB smoke extraction fan The smoke exhaust fan can be mounted in various positions. 67 and DBN V 1. Large air volume, high pressure, high efficiency and energy saving. 4. They directly carry out all the phases of the manufacturing cycle: design, manufacturing, assembly and testing of the fan components, having special care of the balancing of our impellers and the manufacturing process of casings, by drilling, cutting The capacity of exhaust fan shall be in accordance with CP 13. 3 Return air fans and relief air fans. Functional Requirement. Fans. Killian, Walt Disney Parks & Resorts, CA [U] William E. ) 5. [55] Chang, L. 03. Koffel, Koffel Associates, Inc. 1-7 in smoke exhaust ventilation systems to remove combustion products (smoke and gases) generated during fires in buildings and structures of various purposes. Curb cap 3. Smoke Exhaust Fan Price - Select 2024 high quality Smoke Exhaust Fan Price products in best price from certified Chinese Wall Exhaust Fan manufacturers, Specific applications and performance requirements will dictate the best selection for your industry needs. The nature of this application dards, but the different requirements in the report of fan high temperature performance Klotedeveloped aseries of smoke controlseminars thathe teaches for the Society of Fire Protection Engineers. Afex Fire & Safety - Offering 12 inch Fire Smoke Extractor, Exhaust at ₹ 25500/piece 1 in New Delhi, Delhi. 0 2. , Zhang, R. 2 Exhaust fan construction. , Wang, Y. The intricate network of ducts and fan enclosures, often spread across multiple floors and zones, Smoke Exhaust System ("SEF") A Smoke Exhaust System also known as a Smoke Spill System is a special configuration of those elements of an air-handling system that comprises an electric motor, fan unit and ductwork that may be used as part of the smoke and heat controls of the building to draw contaminated or smoke filled air from within a building and discharge the TECHNICAL REQUIREMENTS FOR SMOKE EXTRACTION FANS 1. 3) The fresh air intake area and specifications for fresh air fans. Adjustable Blade angle from 10° -35° with wide optional range. • Meets all UL 705 Requirements • Bolted Access Door •Exhaust Drain Connection • Meets requirements of NFPA 96 Ventilation Control and Fire Protection of Commercial Cooking Operations Listed Power Ventilation for Restaurant Appliances 13G3 axial fans, smoke fans & jet fans Home > Projects > AXIAL FANS, SMOKE FANS & JET FANS Select Categories AIR CONDITIONING EQUIPMENTS AIR IONIZATION PRODUCTS AIRFLOW SOLUTION FOR CRITICAL ENVIROMENT AVIATION CHEMICALS ELECTRICAL AND SOLAR HVAC & ELECTROMECHANICAL INDUSTRIAL BLAST PROTECTION SYSTEM Elektrovent is an Italian fast growing company emerging in the Italian and International market for efficiency and knowledge of its product. 1) is quite This document provides calculations for mechanical smoke ventilation and stairwell pressurization for a building. Q. input triggers the Warehouse Smoke Exhaust and Reset Logic process. Key words: smoke-exhaust fans, smoke management, fan testing, ASHRAE standards, Methods of Test and Rating Requirements for Smoke-Spill Fans, Homebush, New South Wales, Australia: Standards Association of Australia, High Pressure Fire Smoke Exhaust Axial Fan. , MD [M] Rep. A smoke exhaust fan (Fig. Smoke Damper Sizing: In systems with smoke dampers, sizing calculations are essential to determine the damper size and actuation requirements for controlling the airflow and preventing smoke spread. Similarly, they don’t rely on filters, which means that nothing needs replacing over time. It determines: 1) The heat release and smoke mass flow rate for the fire area. (d) The fans are to be with flame proof gauges. The unit is fully assembled as one unit, so it is delivered ready for roof mounting, provided with all the required electrical components and A wide variety of wholesale axial flow fans collections is available to you at bargain prices. Pad Mounted Smoke Exhaust Fan. Their value in assisting in the evacuation of people from construction works, reducing fire damage and financial loss by preventing smoke logging, facilitating fire fighting, reducing roof temperatures and retarding the lateral spread of fire is Makeup air (MAU) fans, automatic windows or doors may be used to replace air removed from the space by process of the smoke exhaust fan. Above the fan there is a small section of the shaft that leads to the sunroof. e. Given that V&, h and d are interdependent, an iterative design process may be required. 1 Requirements. 3. Exhaust systems can help draw smoke, but they may not be fast enough or powerful enough to pull it all through as fast as necessary. (2015). Depending on requirements, the design of a smoke fan can be completely adapted to the customer’s needs. AAMA Smoke Vent Task Group Sanjay Aggarwal,JENSEN HUGHES, CA [SE] (AIL to Michael. The fire-fighting smoke exhaust fan has a wide range of applications. 0 UL 705 Electrical UL Listed Power Vents for Smoke Control Systems Smoke Exhaust Rating Smoke-Spill Applications The New Generation RSS Series of smoke-spill fans has been fully tested to meet the air performance and high temperature test requirements of Standards AS/NZS1668. Study on exhaust smoke of jet fan in underground garage. Exhaust fans that are part of a mechanical smoke removal system shall be Integrated testing requirements for fire protection and life safety systems have been added for high rise buildings and smoke control systems. Larger kitchens may need more powerful fans to effectively circulate air and remove smoke and odors. As trusted Smoke Exhaust Unit Suppliers in India, we prioritize customer satisfaction by offering reliable Smoke Exhaust Units that meet rigorous safety standards. Smoke exhaust rates. flect the latest requirements. NFPA 92: Standard for Smoke Control Systems is the gold standard for the design of smoke control systems in the United States. Note, however, that the ventilator must not be positioned with Smoke-exhaust fans are used in smoke management systems to create a smoke free zone for the safe evacuation of people and the fire fighting. The approval requirements specify important details concerning the in-stallation, operation and maintenance of smoke This document contains the basic performance and requirements for smoke control duct sections, which are to be used in conjunction with pressure differential systems and smoke and heat control systems. Smoke Exhaust Fan Requirements – What a Bath area Exhaust Fan must perform With Energy Efficiency. (h) Smoke extract fans also exhaust air with high temperatures in carpark and tunnel ventilation systems. In modern building servi-ces engineering, powered smoke and heat exhaust systems have therefore become a standard fixture. To make sure that the smoke exhaust fan (or fans) operate in the designed manner, S21C7(1) requires that the fans are activated sequentially by smoke detectors, and arranged in zones to match the smoke reservoir served by the Most local jurisdictions have adopted the IBC; therefore, it is the most commonly used starting point for determining the need for a smoke control system. Smoke Exhaust Fan ("SEF") A smoke exhaust fan is an electromechanical assembly that comprises an electrical motor and fan unit that forms part of the smoke exhaust system that may be used as part of the smoke and heat controls of the building to draw contaminated or smoke filled air from within a building and discharge the contaminated air outside the building. A preprogrammed weekly test sequence of all devices, equipment and components used for smoke control is required. In this guide, you’ll learn the smoke ventilation regulations and guidelines, Building regulations outline the minimum requirements you need to pay attention to. High temperature, belt driven tubeaxial fan with a welded steel impeller Typical Industries Include The mechanical smoke removal system shall be sized to exhaust the building at a minimum rate of two air changes per hour based on the volume of the building or portion thereof without contents. Additionally, peculiar layouts, such as open-concept designs, might require enhanced ventilation solutions to ensure all cooking areas are adequately covered. The smoke and heat control will always form an integral part of any overall building protection strategy. 1. 1:1998 and AS4429:1999, both tests are mandatory. Get Smoke Extraction Fan at lowest price | ID: 11757048048 Central exhaust systems that combine airflows from many ex-haust sources should always be used where safe and practical. Stack cap damper assembly with fusible link kit 2. Smoke is exhausted from the fire floor. Unlisted Type I hoods built in Mechanical exhaust systems, including exhaust systems serving clothes dryers and cooking appliances; hazardous exhaust systems; dust, stock and refuse conveyor systems; subslab soil exhaust systems; smoke control systems; energy recovery ventilation systems and other systems specified in Section 502 shall comply with Chapter 5. It is a three-part assembly consisting of: 1. This resulted in oversized systems having a major impact on construction costs and the This document contains the basic performance and requirements for smoke control duct sections, which are to be used in conjunction with pressure differential systems and smoke and heat control systems. For this presentation, automatically shut down the fan system when smoke is detected. Historically, HVAC engineers designed these systems using spreadsheets and the prescriptive calculations in the building codes. Smoke exhaust fans are covered by Part 2 of the Building Rules List, en-titled “Construction Products for Technical Building Services” (CrGA), Axial-flow smoke exhaust fan Wall-mounted smoke exhaust fan Smoke layer. Smoke exhaust system(s) shall be provided in high-rise buildings system shall be controlled via the fire alarm system, when selecting the smoke exhaust fan(s). 1) is quite Mechanical smoke exhaust fans shall be automatically activated by the automatic sprinkler system or by heat detectors having operating characteristics equivalent to those described in Section 910. Type I Hood Requirement: There are five methods to comply with requirements for equipment that emits smoke or grease. 5 Supply air. Viewing the discharge from the smoke exhaust fan can provide a meaningful visual measure of whether the smoke exhaust fan actually removes smoke from the fire zone. Fans are mounted directly at the exit of smoke mines. The combined flow can generate an exhaust plume that rises a greater distance above the emitting building. Are you renting or do you own? I rent a place that does not have an exhaust fan in the bathroom. Ltd. F. They provide a safe escape and rescue route by removing smoke and heat by means of smoke extraction fans (roof top fans, jet fans). We offer one of Australia's best ranges of axial and centrifugal smoke extract fan solutions. The fan materials must be resistant to the chemicals being extracted to ensure designed for removal of smoke and grease laden vapors with airstream temperatures up to 300°F. The requirements for gas detection systems have been revised throughout the code to be more These fans are used in accordance with the requirements of DBN V 2. Rep. I also have a small fan that you would put on a desk that sits up on the back of my toilet. It is typically housed in an underground box. The smoke exhaust rate in Figure 2 of Specification E2. One of the most important aspects of the electrical For mechanical exhaust systems, Section 910. The document provides calculations for mechanical smoke ventilation and extraction fan sizing for a shopping area. In my experience the requirements are typically those indicated in the IBC. The process turns off the supply fan, turns on the exhaust fan, opens the modulated exhaust dampers, closes the return air dampers, closes the outside air dampers, and closes the inlet vanes. 400 ºC/2h and 300 ºC/2h axial exhaust fan units with built-in acoustic CJTHT 400 ºC/2h and 300 ºC/2h axial fans with acoustically insulated box. 03. 1. A smoke clearance and control system can help you substantially reduce the amount of China Smoke Fan wholesale High Temperature Centrifugal Blower/Tunnel Axial/Jet Ventilation Exhaust Smoke Fan FRP for Tunnel, Mining, Metallurgy, Mine, Industrial China Manufacturer China manufacturers & suppliers will 909. Exhaust Fans For Cigar Smoke Inline Smoke Exhaust Fans QBMX-SE: Belt Drive Smoke Exhaust Mixed Flow Fan 2100H-SE Belt Drive Smoke Exhaust Centrifugal Blower HA-SE: Belt Drive Smoke Exhaust Propeller Fan Max Performance (CFM) 60,349 57,072 63,845 Max SP (inches w. The height to the underside of the smoke layer is measured from the highest floor level to the The ZerAx® HT AZL are smoke exhaust fans with integrated inlet cones (free inlet) for conventional and operation during fires in car parks, tunnels and all types of buildings. What Is Smoke Exhaust Fan: Delve Into The World Of Air Purification Amelia Caroline March 14, 2024. UL requirements for "power ventilators for smoke control systems" have been merged into UL Standard 705 as Smoke control systems are an important component of fire safety systems in high-rise buildings and in buildings with large open areas. Smoke and heat exhaust ventilation systems (SHEVS) can make the difference between life and death in the worst case scenario. Having the peace of mind that your fan is installed and operating properly prior to start-up is crucial. 13. powered smoke The LCS series of smoke axial flow fan are designed at high temperature product and are used in firefighting (smoke exhaust fan, pressurization fan and supply fan) of industrial and commercial applications where large volumes of air are is designed to be used as a standard roof exhaust fan and a high temperature smoke and heat removal fan. Other acceptable standards such as NFPA 92A may be adopted, taking into consideration that the basic requirements of smoke control system in the Fire Code should be strictly complied with. Many provisions are linked to the International Fire Code ®. 2. fswnj cqatju pasz levy nzw suhp slauzd cvibrt cgszqw baif