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Q: What is the principle of a pipeless fume hood and a medicine cabinet? (Where do you need to take the pipe to go?)
A: There is no fan and cabinet on the top of the cabinet and the cabinet. The bottom of the cabinet is filled with air. The air in the laboratory is sucked in from the air inlet. The wind is formed from the bottom to the top. The filter is adsorbed through the top of the cabinet. Disposal, clean air is discharged from the top into the laboratory, thereby purifying the laboratory air and protecting the safety of laboratory personnel;
Q: Since it is the inner row, where did the wind go? (Is the air discharged clean?)
A: Yes, our double-layer filter adsorption capacity can reach the TWA value (TWA value refers to the time-weighted average concentration of a chemical in the air usually within an 8-hour working day and a 40-hour working week) 1%; at the same time, real-time monitoring of the discharged air, the detection value is displayed on the LED screen, and the alarm will be displayed when the displayed value exceeds the set safety value.
Q: How long is the filter life? (How long does the filter need to be replaced?)
A: Under normal circumstances, the average life of the filter is 1 year. Depending on the amount of reagents stored or used by the customer, we provide the questionnaire to the customer to fill in and calculate the approximate life span. At the same time, the filter saturation real-time monitoring system can be installed to The ppm form monitors and displays the concentration of the filter outlet in real time, sets the alarm point, and the filter saturation will automatically alarm.
Q: What kind of gas can the filter absorb? (What are the chemicals that cannot be adsorbed)
A: There are nearly 500 kinds of chemicals commonly used in laboratories. The non-adsorbable substances are hydrogen, helium, inert gas in air, methane, ethane, ethylene oxide, carbon monoxide, carbon dioxide and nitric oxide. , propylene, propyne, acetylene, organophosphorus compounds, mercury, hydrogen cyanide, digestive acids and radioisotopes.
Q: What models are there for the filter?
A: There are three types of filters: organic filters for adsorption of organic solvents; general-purpose filters for both organic and inorganic acids; HEPA filters for strong adsorption of solid powders.
Q: What is the principle of your monitoring probe? Is the data accurate? How to correct?
A: Our probes are equipped with high-sensitivity electrochemical probes imported from Japan, combined with the complexities of chemical laboratories for software design. After numerous tests, when using acetone as the reference material, the portable detector PID data produced by American Huarui Company Consistent, the error is less than 5%.
Q: Can the filter be replaced by itself?
A: Yes, the replacement process is simple. See the product manual for details.
Q: Can your medicine cabinets control temperature?
A: No, temperature control can't be circulated indoors. Our cabinets are designed with special air inlets to ensure ventilation. For the temperature-controlled clean air medicine cabinet, our company is also developing.
Q: What is the material of your cabinet, anti-corrosion?
A: The metal part is 1.2mm galvanized steel plate, coated with anti-corrosion coating, strong corrosion resistance; the filter adopts polypropylene (PP) frame body, which has strong corrosion resistance.
Q: Can a large amount of chemical operation be used?
A: Under normal circumstances, almost 99% of chemical laboratories use our air-purifying medicine cabinets without any problems, but for fume hoods, because of the certain amount of adsorption of the filter, if it is a large number of operations, the filter The life expectancy will be reduced accordingly, so we need to fill out the questionnaire. Our laboratory determines the approximate life of the filter. Some operations can be combined with the new technology developed by our company (such as condensate recovery unit) and the fume hood to ensure the filter life reaches a certain level. . If it is not suitable to use our fume hood, we will inform you in advance.
Q: Features and advantages of air-conditioning products?
A: 1, environmental protection: do not discharge toxic and hazardous chemicals to the outside,
2, clean: recycling indoor air
3, energy saving, our product power from 30W-120W, compared with the external ventilating cabinet, the energy consumption is almost negligible 4, easy to install and move, no need to pipe, no complicated engineering requirements.
5. Safety: The monitoring system monitors the laboratory environment and filter usage in real time to ensure absolute safety.
Taicang Huafeng Environmental Protection Technology Co., Ltd.
Technical department