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- Z-1565 HORIZONTAL LIQUID FILLING MACHINEZ-1565 HORIZONTAL LIQUID FILLING MACHINE MATERIAL: SS316L FOR ALL CONTACT PRODUCTS PART, OTHER PARTS SS304 FILLING RANGE: 100 TO 1000ML FILING SPEED: 0 TO 30BPM (ADJUSTABLE) AIR PRESSURE: 0.5 TO 0.8MPA WORKING PRESSURE: S0.2 TO 0.5MPA AIR CONSUMPTION: 50000mm WEIGHT: 45KG QUANTITY: 1 Learn More
- A-2555 DOUBLE-PORT DOWN PILLOW FILLING MACHINE WITH WEIGHING & HUMIDIFICATION SYSTEMSA-2555 DOUBLE-PORT DOWN PILLOW FILLING MACHINE WITH WEIGHING & HUMIDIFICATION SYSTEMS SPECIFICATIONS: VOLTAGE: 220 VOLTZ AND 50/60 Hz (AS PER CUSTOMER) AIR DELIVERY SPEED: 0.8 M³ PER MINUTE POWER: 3.75 KW FILLING MATERIALS: DOWN 70% TO 95% R FILLING PORTS: 2 QUANTITY: 1 Learn More
- SUGAR REFINERY COMPLETE LINE 70 TONS PER HOURREFERENCE NUMBER: AJ-2088 SUGAR REFINERY COMPLETE LINE 70 TONS PER HOUR PROCESSING 70 TON PER HOUR OF UNREFINED BROWN SUGAR INTO WHITE CRYSTALLINE. 2007 PUTSCH 1300 X 1300 FILTER PRESSES 2008 AND 2012 BROADBENT CONTINUOUS AND BATCH CENTRIFUGALS BMA AND 1 WIEDMANN VACUUM PAN CRYSTALLIZER SYSTEM 2016 ALFA LAVAL HEAT EXCHANGER OR EVAPORATION SETS 3X ALFA-LAVAL PLATE HEAT EXCHANGERS M10-MFM 105 ℃ STEAM SYRUP 90 T/H 333KW WIDMANN, SHELL AND TUBE HEAT EXCHANGER, MDL. CALANDRIA DN2000 SEPARATOR DN 2400 BMA ROTARY DRYER WITH FLUIDIZED BED COOLER 60 ASSORTED SIZE STAINLESS TANKS AND VESSELS FULL INVENTORY OF NEW SPARE PARTS FOR ALL ABOVE POWER STATION FEATURING 12.5 MW SIEMENS TURBINES VOLUND HIGH-PRESSURE STEAM BOILER (63 TONS AT 60 BAR) 24 JORD AIR COOLING CONDENSER 2014 ATLAS COPCO COMPRESSED AIR SYSTEM AND DRYERS WIDE ASSORTMENT OF ABB SIEMENS SWITCHGEAR 24 UNIT FREE STANDING AIR COOLED CONDENSER SYSTEM PLUSS 100 PROCESS AND VACUUM PUMP INCLUDING NASH, WARMAN, DURCO, PUTSCH, SANDPIPER AND OTHER QUANTITY: 1 Learn More
- TEMPERATURE AND HUMIDITY TEST CHAMBERREFERENCE NUMBER: Y-2076 TEMPERATURE AND HUMIDITY TEST CHAMBER THIS SERIES OF TEMPERATURE TEST CHAMBER IS SUITABLE FOR THE RELIABILITY TEST OF INDUSTRIAL PRODUCTS. IT HAS THE CHARACTERISTICS OF TEMPERATURE AND HUMIDITY CONTROL PRECISION AND WIDE CONTROL RANGE. ELECTRICAL AND ELECTRONIC PRODUCTS ENVIRONMENTAL TEST EQUIPMENT BASIC PARAMETERS VERIFICATION METHOD LOW TEMPERATURE, HIGH TEMPERATURE, CONSTAMP DAMP HEAT, ALTERNATING WET HEAT TEST EQUIPMENT REQUIREMENTS. SAMPLE REQUIREMENTS IN ORDER TO MAKE YOUR TEST DATA MORE REALISTIC AND EFFECTIVE, THE TEST CHAMBER SHOULD BE USED REASONABLY WHILE SATISFYING THE FOLLOWING PRINCIPLES. THE TOTAL MASS LOAD IS NOT MORE THAN 80 KG PER CUBIC METER OF CHAMBER VOLUME. THE TOTAL VOLUME OF THE LOAD IS NOT MORE THAN ⅕ OF THE WORKING CHAMBER VOLUME IN ANY SECTION PERPENDICULAR TO THE DOMINANT WIND DIRECTION, THE SUM OF THE LOAD AREAS SHOULD BE NO MORE THAN ⅓ OF THE CROSS-SECTIONAL AREA OF THE WORKING CHAMBER. DO NOT BLOCK THE FLOW OF AIRFLOW WHEN THE LOAD IS PLACED. VOLUME DIMENSION: ABOUT 150L INTERIOR SIZE: W: 600mm H: 600mm D: 460mm THE MAIN TECHNICAL PARAMETERS TEST CONDITION COOL METHOD: AIR COOLED MEASURED AT A ROOM TEMPERATURE OF + 25℃ UNDER NO LOAD, THE TEMPERATURE AND HUMIDITY PERFORMANCE TEST IS MEASURED ACCORDING TO THE RELEVANT REGULATIONS. THE SENSOR IS PLACED AT THE AIR OUTLET OF THE AIR HANDLING UNIT TEMPERATURE UNIT RANGE: 40 ℃ TO + 150 ℃ TEMPERATURE FLUCTUATION ± 0.5 ℃ TEMPERATURE UNIFORMITY: ≤ 2.0 ℃ TEMPERATURE DEVIATION: ≤ ± 2.0 ℃ TEMPERATURE CHANGE RATE HEAT UP RATE: - 40 ℃ TO +100 ℃ FULL RANGE AVERAGE SPEED: APPROX 45 MINUTES (NO LOAD) COOLING RATE: +20 ℃ TO 40 ℃ FULL RANGE AVERAGE SPEED: APPROX 60 MINUTES (NO LOAD) QUANTITY: 1 Learn More
- T-6552 MASK AIR TIGHTNESS TESTER
REFERENCE NUMBER: T-6552
MASK AIR TIGHTNESS TESTER
MASK AIR TIGHTNESS TESTER
HOW TO CHOOSE A HIGH-QUALITY MASK NOT ONLY DEPENDS ON THE FILTERING EFFICIENCY OF THEMASK, BUT ALSO TO CONFIRM WHETHER THE MASK IS COMPLETELY IN CONTACT WITH THE FACE, OTHERWISE AEROSOL PARTICLES SUCH AS GERMS THAT HAVE NOT BEEN FILTERED BY THE MASK WILL BE INHALED FROM THE INADEQUATE ADHESION. THEREFORE, IT IS VERY IMPORTANT TO CHECK THE WEARING STATUS OF THE MASK. THE EUROPEAN AND AMERICAN COUNTRIES HAVE LISTED THE APPLICATION TEST OF THE MASK AS A STRONG INSPECTION ITEM.
FOR EXAMPLE, THE N95 MASK IS ONE OF 9 TYPES OF PARTICULATE PROTECTIVE MASKS CERTIFIED BY NIOSH (NATIONAL INSTITUTE OF OCCUPATIONAL SAFETY AND HEALTH). "N" INDICATES OIL RESISTANCE."95" INDICATES THAT THE PARTICLE CONCENTRATION IN THE MASK IS MORE THAN 95% LOWER THAN THAT OF THE PARTICLES OUTSIDE THE MASK WHEN EXPOSED TO THE SPECIFIED NUMBER OF SPECIAL TEST PARTICLES. N95 IS NOT A SPECIFIC PRODUCT NAME, AS LONG AS IT MEETS THE N95 STANDARD AND PASSES THE NIOSH REVIEW, IT CAN BE CALLED "N95 MASK".
N95 TYPE MASKS, IN ADDITION TO THE FILTERING EFFICIENCY OF THE MASKS, THE CLOSENESS OF THE MASKS TO THE FACE IS ONE OF THE IMPORTANT FACTORS THAT DETERMINE THE EFFECTIVENESS OF THE USE OF THE MASKS. THE SUITABILITY OF DIFFERENT TYPES OF MASKS FOR THE HUMAN FACE VARIES GREATLY.
THEREFORE, BEFORE USING A MASK, THE SUITABILITY OF THE MASK SHOULD BE CHECKED FIRST. DURING THETIGHTNESS TEST OF THE WEARER'S FACE, ENSURE THAT AIR CAN PASS IN AND OUT THROUGH THE MASK WHEN IT IS CLOSE TO THE EDGE OF THE FACE. THE MASK TIGHTNESS TESTER CAN QUICKLY COMPLETE THE TIGHTNESS TEST OF RESPIRATORS SUCH AS MASKS TO ENSURE THAT IT PROVIDES GOOD PROTECTION PERFORMANCE. IT CONFORMS TO THE CHINESE RESPIRATOR STANDARD GB2626-2019 STANDARD, OSHA / CSA STANDARD AND CHINA GENERAL ADMINISTRATION OF QUALITY SUPERVISION, INSPECTION AND QUARANTINE "GB 19083-2010 TECHNICAL REQUIREMENTS FOR MEDICAL PROTECTIVE MASKS" JOINTLY ISSUED BY THE CHINA NATIONAL STANDARDIZATION ADMINISTRATION COMMITTEE.
ADHESION (SUITABILITY TEST): THE MASK DESIGN SHOULD PROVIDE GOOD ADHESION. THE OVERALL FIT FACTOR OF THE MASK SHOULD NOT BE LESS THAN 100. THIS TEST THE REQUIREMENTS WERE FORMALLY IMPLEMENTED ON AUGUST 1, 2011.
MASK TIGHTNESS TESTER USES CNC TECHNOLOGY, SUITABLE FOR 100 / 99 / P3 / HEPASERIES MASKS DISPOSABLE FILTER MASK TIGHTNESS TEST (INCLUDING DISPOSABLE DUST MASKS SUCH ASN95 / N90 / KN95), GAS MASKS / BREATHING MASKS, ADHESIVENESS TEST OF HALF-MASK AND FULL FACE MASK, INDEPENDENT OR COMPUTER CONTROL, FIVE LANGUAGES SWITCH DISPLAY, EQUIPPED WITH MULTIPLE COMMUNICATION INTERFACES (USB, ETHERNET), WIFI CAN ALSO BE ENABLED, ONE COMPUTERCAN CONTROL FOUR INSTRUMENTS AT THE SAME TIME.PARAMETER:CONCENTRATION RANGE: 0 ~ 100,000 / CM3GRAIN DIAMETER: 0.02 ~ 1.0^MFLOW: SAMPLING FLOW: 100CM3 / MINTOTAL FLOW: 700CM3 / MINCLOSENESS COEFFICIENT TEST: DIRECT TEST (COUT/ CIN)LIQUOR: 99.5% + ISOPROPANOL (ANALYTICAL GRADE)DISPLAY: 7INCH TRUE COLOR TOUCH SCREENCOMMUNICATION INTERFACE: USB X 3 (HOST X 2,DEVICE X 1) ETHERNET INTERFACE X1CONNECTION PORT: ENVIRONMENT PORT, SAMPLING PORTWIFI: EQUIPPEDLANGUAGES: ENGLISH, FRENCH, SPANISH, PORTUGUESE, CHINESEFLOW CONTROL: SENSOR CONTROLPC CONTROLLABLE OPERATION: ONE COMPUTER CAN CONTROL 4 INSTRUMENTS AT THE SAME TIMEDATA OUTPUT FORMAT: MICROSOFT EXCELWORKING TEMPERATURE: 15 ~ 35 °CPOWER SOURCE: AC 110 —240V 50 / 60HZAPPEARANCE SIZE: 208 X 117 X 262MMWEIGHT: 2.1KGACCESSORIES: ALCOHOL REAGENT BOTTLE, PROTECTIVE CAP, REAGENT STICK, ZERO-COUNT FILTER, STRAINER, SAMPLING TUBE, INSTRUCTION MANUAL, AC ADAPTER, TOUCH SCREEN PEN, OPTIONAL COMPUTER.OPTIONAL: TEST KIT FOR TIGHTNESS COEFFICIENTIN ORDER TO PREVENT INFECTION AT THE MEDICAL SITE AND DURING LABOR WORK, WORKERS MUST BE PROTECTED FROM INHALABLE HAZARDOUS SUBSTANCES IN THE WORKPLACE, AND RESPIRATORS SUCH AS MASKS MUST BE WORN DURING WORK.SELECT A RESPIRATOR, SUCH AS A MASK, BASED ON YOUR FACIAL FEATURES, AND EVALUATE THE TIGHTNESS BETWEEN THE RESPIRATOR, SUCH AS A MASK AND THE FACE, TO CHECK WHETHER THERE ARE GAPS OR LEAKS THAT PUT WORKERS AT RISK. THE MASK TIGHTNESS TESTER CAN QUICKLY COMPLETE THE TIGHTNESS TEST OF RESPIRATORS SUCH AS MASKS TO ENSURE THAT IT PROVIDES GOOD PROTECTIVE PERFORMANCE. SECURITY EXPERTS WILL ALSO DEVELOP PROTECTION SCHEMES AND STANDARD REGULATIONS BASED ON THE RESULTS OF THE TIGHTNESS TEST. WIDELY USED IN HOSPITALS, MANUFACTURING PLANTS, PRODUCTION SITES, FIREFIGHTING WORKPLACES AND OTHER OFFICIAL TESTING AGENCIES.MASK TIGHTNESS TESTER FEATURES:• QUANTITATIVE TIGHTNESS TEST FOR RESPIRATORS SUCH AS MASKS (QNFT)• APPLICABLE TO 100/99 / P3 / HEPA SERIES MASK DISPOSABLE FILTER MASK TIGHTNESS TEST (INCLUDING N95 / N90 / KN95 AND OTHER DISPOSABLE DUST MASKS)• ADHESION TEST OF HALF MASK AND FULL FACE MASK• GAS MASK TIGHTNESS TEST• PAPR MASK TIGHTNESS TEST• SCBA RESPIRATOR MASK TIGHTNESS TEST• 7INCH TRUE COLOR TOUCH SCREEN• INDEPENDENT OR COMPUTER CONTROLLED• USING CNC TECHNOLOGY• ENGLISH, FRENCH, SPANISH, PORTUGUESE, CHINESE LANGUAGE SWITCHING DISPLAY• COMPLIES WITH US OSHA STANDARDS, CANADIAN STANDARDS ASSOCIATION (CSA) GUIDELINES, INCLUDING N95• EQUIPPED WITH A VARIETY OF COMMUNICATION INTERFACES (USB, ETHERNET), AND CAN ALSO ENABLE WIFI• ONE COMPUTER CAN CONTROL FOUR INSTRUMENTS AT THE SAME TIMEQUANTITY: 1 - T-6575 NON-INVASIVE VENTILATOR
NON-INVASIVE VENTILATOR
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CERTIFICATE: CE
MEDICAL VENTILATOR
TECHNICAL PARAMETERS OF DOUBLE LEVEL VENTILATOR
VENTILATOR TYPE: ELECTRIC CONTROL
SCOPE OF APPLICATION: TREATMENT AND TITRATION OF SLEEP APNEA HYPOPNEA SYNDROME, SEVERE SNORING, AND RESPIRATORY INSUFFICIENCY.
DISPLAY INTERFACE: 3.5-INCH LED SCREEN, CHINESE OPERATING SYSTEM
*VENTILATION MODE: CPAP, S, S/T, T
PRESSURE RANGE:
PRESSURE RANGE: 4-30CMH2O (±0.5CMH2O)
PRESSURE ACCURACY: + 0.5CMH2O
PARAMETER SETTING:
DELAYED BOOST: 0-60MIN, SET THE DIVISION INTERVAL 5MIN
INITIAL PRESSURE: 4CMH2O TREATMENT PRESSURE / RESPIRATORY PRESSURE SETTING
THERAPEUTIC PRESSURE: 4-20CMH2O (IN CPAP MODE)
TARGET TIDAL VOLUME: 150ML - 1500ML, ON/ OFF
MAXIMUM SUCTION PRESSURE: 4-30CMH2O, (CAN BE SET WHEN THE TARGET TIDAL VOLUME FUNCTION IS ON)
MINIMUM SUCTION PRESSURE: 4-30CMH2O (NOT HIGHER THAN THE SUCTION PRESSURE), (CAN BE SET WHEN THE TARGET TIDAL VOLUME FUNCTION IS ON)
INSPIRATORY PHASE PRESSURE: 4-30CMH2O
EXPIRATORY PRESSURE: 4-30CMH2O
EXPIRATORY DECOMPRESSION: PATIENT, OFF, 1-3, THREE ADJUSTABLE
MANUAL VOLTAGE REGULATION: 0-2 GEAR, 0-2CMH2O (ONLY AVAILABLE IN CPAP MODE)
INSPIRATORY SENSITIVITY: 1-8 STALLS
EXPIRATORY SENSITIVITY: 1-8 STALLS
RESPIRATORY FREQUENCY: 3-40 TIMES / MIN
INSPIRATORY TIME: 0.3-3.0S
BACKUP RATE: ON / OFF, DEFAULT 10
PRESSURE RISE TIME: 1-4 STALLS
HUMIDIFIER: 1-5 ADJUSTABLE IN 5 GEARS
*TITRATION FUNCTION: SUPPORT MANUAL AND AUTOMATIC PRESSURE TITRATION, BUILT-IN REMOTE WIRELESS COMMUNICATION MODULE, COMPLETE THE RANDOM SWITCHING OF SINGLE AND DOUBLE LEVEL MODES IN THE TITRATION PROCESS, AND CONTROL MORE THAN 11 VENTILATOR PARAMETERS AT THE SAME TIME.
AUXILIARY FUNCTION: AUTOMATIC AIR LEAKAGE COMPENSATION, AUTOMATIC STARTUP, AUTOMATIC SHUTDOWN, DELAYED SHUTDOWN, SCREEN BACKLIGHT ADJUSTMENT
MONITORING PARAMETERS: PRESSURE, TIDAL VOLUME, RESPIRATORY RATE, MINUTE VENTILATION VOLUME, AIR LEAKAGE VOLUME, INSPIRATORY TIME, BLOOD OXYGEN SATURATION
WAVY CURVE: PRESSURE TIME WAVEFORM, FLOW RATE TIME WAVEFORM
ALARM PROMPT: PIPELINE AND MASK FALLING OFF, AIR LEAKAGE PROMPT, POWER INTERRUPTION, TREATMENT MACHINE FAILURE, HUMIDIFIER FAILURE, LOW VOLTAGE, HIGH RESPIRATORY RATE, LOW RESPIRATORY RATE, LOW MINUTE VENTILATION VOLUME, LOW BLOOD OXYGEN, REPLACEMENT OF FILTER COTTON, FULL SD CARD, RE INSERTION OF SD CARD
*DATA MANAGEMENT:
NETWORK DATA: BMC + RESPIRATORY HEALTH MANAGEMENT CLOUD PLATFORM
SD CARD DATA: RESART NPAP DATA ANALYSIS SOFTWARE
PARTS:
SD CARD: STANDARD
SD CARD SLOT: STANDARD
PIPING: 9 22MM, 1.8M LONG
FACE SHIELD: F2 NOSE MASK AS STANDARD
NOISE: LESS THAN 30DB
ENVIRONMENT CONDITION:
TEMPERATURE:
(WHEN USED) 5 -35 C
(DURING TRANSPORTATION AND STORAGE) -20 C -55 C
ATMOSPHERIC PRESSURE:
(WHEN USED) 760-1060HPA
(DURING TRANSPORTATION AND STORAGE) 760-1060HPA
WORKING HOURS: MORE THAN 8 HOURS
POWER SUPPLY REQUIREMENTS:
AC VOLTAGE: 100-240V
FREQUENCY: 50HZ/60HZ
INPUT POWER: LESS THAN 2A
WATERPROOF LEVEL: IP22 - DRIP PROOF EQUIPMENT
INSTRUMENT SIZE: 290mm X 180mm X 134mm
WEIGHT: 1.5KG (EXCLUDING HUMIDIFIER) 2.5KG (INCLUDING HUMIDIFIER)
ITEM 001
QUANTITY: 10 SETS-999 SETS
ITEM 002
QUANTITY: 1,000 SETS-9,999SETS
ITEM 003
QUANTITY: ≥10,000 SETS - D-2388 What’s the Best Material for a Mask?
Federal health officials have now recommended that we cover our faces with fabric during the coronavirus pandemic. But what material offers the most protection?
The Centers for Disease Control and Prevention has posted a no-sew mask pattern using a bandanna and a coffee filter as well as a video on making masks using rubber bands and folded fabrics found at home.
While a simple face covering can reduce the spread of coronavirus by blocking outgoing germs from coughs or sneezes of an infected person, experts say there is more variation in how much homemade masks might protect the wearer from incoming germs, depending on the fit and quality of the material used.
Scientists around the country have taken it upon themselves to identify everyday materials that do a better job of filtering microscopic particles. In recent tests, HEPA furnace filters scored well, as did vacuum cleaner bags, layers of 600-count pillowcases and fabric similar to flannel pajamas. Stacked coffee filters had medium scores. Scarves and bandanna material had the lowest scores, but still captured a small percentage of particles.
If you don’t have any of the materials that were tested, a simple light test can help you decide whether a fabric is a good candidate for a mask.
“Hold it up to a bright light,” said Dr. Scott Segal, chairman of anesthesiology at Wake Forest Baptist Health who recently studied homemade masks. “If light passes really easily through the fibers and you can almost see the fibers, it’s not a good fabric. If it’s a denser weave of thicker material and light doesn’t pass through it as much, that’s the material you want to use.”
Researchers say it’s important to remember that lab studies are conducted under perfect conditions with no leaks or gaps in the mask, but the test methods give us a way to compare materials. And while the degree of filtration for some homemade masks seems low, most of us — who are staying home and practicing social distancing in public — don’t need the high level of protection required for medical workers. More important, any face covering is better than none, especially if worn by a person who has the virus but doesn’t know it.
The biggest challenge of choosing a homemade mask material is to find a fabric that is dense enough to capture viral particles, but breathable enough that we can actually wear it. Some items being touted online promise high filtration scores, but the material would be unwearable.
Dressing Up for Work … at Home
Yang Wang, an assistant professor of environmental engineering at Missouri University of Science and Technology, worked with his graduate students to study various combinations of layered materials — including both air filters and fabric. “You need something that is efficient for removing particles, but you also need to breathe,” said Dr. Wang, who last fall won an international award for aerosol research.To test everyday materials, scientists are using methods similar to those used to test medical masks, which everybody agrees should be saved for medical workers who are exposed to high doses of virus from seeing infected patients. The best medical mask — called the N95 respirator — filters out at least 95 percent of particles as small as 0.3 microns. By comparison, a typical surgical mask — made using a rectangular piece of pleated fabric with elastic ear loops — has a filtration efficiency ranging from 60 to 80 percent.
Dr. Wang’s group tested two types of air filters. An allergy-reduction HVAC filter worked the best, capturing 89 percent of particles with one layer and 94 percent with two layers. A furnace filter captured 75 percent with two layers, but required six layers to achieve 95 percent. To find a filter similar to those tested, look for a minimum efficiency reporting value (MERV) rating of 12 or higher or a microparticle performance rating of 1900 or higher.
The problem with air filters is that they potentially could shed small fibers that would be risky to inhale. So if you want to use a filter, you need to sandwich the filter between two layers of cotton fabric. Dr. Wang said one of his grad students made his own mask by following the instructions in the C.D.C. video, but adding several layers of filter material inside a bandanna.
Dr. Wang’s group also found that when certain common fabrics were used, two layers offered far less protection than four layers. A 600 thread count pillow case captured just 22 percent of particles when doubled, but four layers captured nearly 60 percent. A thick woolen yarn scarf filtered 21 percent of particles in two layers, and 48.8 percent in four layers. A 100 percent cotton bandanna did the worst, capturing only 18.2 percent when doubled, and just 19.5 percent in four layers.
The group also tested Brew Rite and Natural Brew basket-style coffee filters, which, when stacked in three layers, showed 40 to 50 percent filtration efficiency — but they were less breathable than other options.
If you are lucky enough to know a quilter, ask them to make you a mask. Tests performed at the Wake Forest Institute for Regenerative Medicine in Winston-Salem, N.C., showed good results for homemade masks using quilting fabric. Dr. Segal, of Wake Forest Baptist Health, who led the study, noted that quilters tend to use high-quality, high-thread count cotton. The best homemade masks in his study were as good as surgical masks or slightly better, testing in the range of 70 to 79 percent filtration. Homemade masks that used flimsier fabric tested as low as 1 percent filtration, Dr. Segal said.
The best-performing designs were a mask constructed of two layers of high-quality, heavyweight “quilter’s cotton,” a two-layer mask made with thick batik fabric, and a double-layer mask with an inner layer of flannel and outer layer of cotton.
Bonnie Browning, executive show director for the American Quilter’s Society, said that quilters prefer tightly woven cottons and batik fabrics that stand up over time. Ms. Browning said most sewing machines can handle only two layers of fabric when making a pleated mask, but someone who wanted four layers of protection could wear two masks at a time.
Ms. Browning said she recently reached out to quilters on Facebook and heard from 71 people who have made a combined total of nearly 15,000 masks. “We quilters are very much in the thick of what’s going on with this,” said Ms. Browning, who lives in Paducah, Ky. “One thing most of us have is a stash of fabric.”
People who don’t sew could try a folded origami mask, created by Jiangmei Wu, assistant professor of interior design at Indiana University. Ms. Wu, who is known for her breathtaking folded artwork, said she began designing a folded mask out of a medical and building material called Tyvek, as well as vacuum bags, after her brother in Hong Kong, where mask wearing is common, suggested it. (DuPont, the maker of Tyvek, said in a statement that Tyvek is intended for medical apparel, not masks.) The folded mask pattern is free online, as is a video demonstrating the folding process. In tests at Missouri University and University of Virginia, scientists found that vacuum bags removed between 60 percent and 87 percent of particles. But some brands of vacuum bags may contain fiberglass or are harder to breathe through than other materials, and shouldn’t be used. Ms. Wu used a bag by EnviroCare Technologies, which has said it does not use fiberglass in its paper and synthetic cloth bags.
“I wanted to create an alternative for people who don’t sew,” said Ms. Wu, who said she is talking to various groups to find other materials that will be effective in a folded mask. “Given the shortage of all kinds of materials, even vacuum bags might run out.”
The scientists who conducted the tests used a standard of 0.3 microns because that is the measure used by the National Institute for Occupational Safety and Health for medical masks.
Linsey Marr, a Virginia Tech aerosol scientist and an expert in the transmission of viruses, said the certification method for respirators and HEPA filters focuses on 0.3 microns because particles around that size are the hardest to catch. While it seems counterintuitive, particles smaller than 0.1 microns are actually easier to catch because they have a lot of random motion that makes them bump into the filter fibers, she said.
“Even though coronavirus is around 0.1 microns, it floats around in a wide range of sizes, from around 0.2 to several hundred microns, because people shed the virus in respiratory fluid droplets that also contain lots of salts and proteins and other things,” said Dr. Marr. “Even if the water in the droplets fully evaporates, there’s still a lot of salt and proteins and other gunk that stays behind as solid or gel-like material. I think 0.3 microns is still useful for guidance because the minimum filtration efficiency will be somewhere around this size, and it’s what NIOSH uses.”
Learn More - L-5934 MONFORTS 6-F TWIN AIR STENTER YEAR 2003 – WORKING WIDTH 2400mm
REFERENCE NUMBER: L-5934
MONFORTS 6-F TWIN AIR STENTER YEAR 2003 – WORKING WIDTH 2400mm
STENTER
RAMA MONFORTS
MAKE: MONFORTS
MODEL: 6-F TWIN
YEAR: 2003
440 VAC 60HZ
NATURAL GAS
AIR COMPRESSOR 7 BAR
QUANTITY: 1
Learn More - R-7199 CABER AIR BALOON FOULARD, YEAR 1992
R-7199 CABER AIR BALOON FOULARD, YEAR 1992
BRAND: CABER ITALY
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MODEL: AIR BALLOON 3C
YEAR: 1992
WORKING WIDTH: 1400mm
TWIST DETECTOR
SWITCHBOARD AND ELECTRICAL MOTORS: 380V, 50HZ
TOTAL POWER OF ALL DRIVES: CA 25 KW
TYPE: TUBULAR MESH TREATMENT PLANT
1 AIR BALLOON FOULARD WITH 3 CYLINDERS
THE FIRST CYLINDER SQUEEZE PROCESS IS TO REMOVE THE EXCESS OF WATER
AFTER BALLOON WITH TANK IMPREGNATING SOFTENER
AND AFTER THE SECOND AND THIRD CYLINDER SQUEEZE.
ORIGINAL SWITCHBOARD AND INVERTER, UNCHANGED, ALL IN PERFECT OPERATION.
FOULARD NOT WORKING IN OUR FACTORY FROM THE YEAR 2001 TO DATE, FOR ADMINISTRATIVE REASONS OF OUR COMPANY.
THE FOULARD IS IN PERFECT WORKING ORDER.
QUANTITY: 1 - L-1193 WARTSILA 1.48 MW MODEL 9L20 HFO GENERATOR
L-1193 WARTSILA 1.48 MW MODEL 9L20 HFO GENERATOR
MODEL: W9L-20
YEAR: 05/2004
DATE OF COMMISSIONING: 08/09/2004
CAPACITY: 1548 KW
SPEED: 1000 RPM
NO. OF RUNNING HOURS: 41733HRS
INSTALLATION TYPE: STATIONARY ENGINE
FITTED WITH SINGLE BASE FRAME LOADED ON SPRING
ENGINE MOUNTED PHE & CHARGER AIR COOLER.ALTERNATOR DETAILS:
MAKE: AVK
TYPE: DIG 130K/6
CAPACITY :1852 KVA
SELF EXCITED WITH ROTATING BRIDGEDIODESBOOSTER AND FEEDER UNIT:
MAKE: WARTSILA INDIA LTDLUBE OIL SEPARATOR:
MAKE: ALFA LAVAL
MODEL: MMPX 403 SGP-11HFO SEPARATOR:
MAKE: ALFA LAVAL
MODEL: PA-6001) HFO STORAGE TANK
CAPACITY :100 KL2) HFO DAY TANK
CAPACITY :50 KL3) SLUDGE TANK
CAPACITY :10 KL
CHARGE AIR FILTER:
MAKE: AAFRADIATOR:
MAKE: COIL COMPANY
MODEL: FCW220
RETURN FUEL UNIT:
MAKE: WARTSILA INDIA LIMITEDENGINE CONTROL PANEL:
1) ENGINE CONTROL PANEL(CFC_011)
2) BATTERY CHARGER UNIT
MAKE: AMARARAJA
RATING :100AH
PCC PANELSTARTING AIR COMPRESSOR:
MAKE: INGERSOLL RAND
MODEL :7T2INCOMING & OUT GOING BREAKER:
MAKE: ABB
TYPE: SF6QUANTITY: 1
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