5 Types of Laboratory Fume Hoods and its Properties

A traditional laboratory fume hoods have a box with a movable sash window-like structure.  To ensure full protection, the fume hoods should be properly sited. Due to pedestrian flow, doors and supply air diffusers locate hoods to prevent crosscurrents at the hood nose. Sufficient laboratory supply air must be available to allow hoods to work at their required face velocities. The hood works by maintaining a fairly negative pressure within the hood to prevent any contaminant from escaping while at a constant pace drawing air through the hood opening. A suitable hood face velocity is of interest for the safe and efficient function of a laboratory fume hood. While excessive face velocities can often lead to friction and reduced containment, the hood's efficiency can also be compromised by insufficient speeds. Overall, the face velocity of a hood is recommended to vary between 0.3 m / s (60 fpm) and 0.5 m / s (100 fpm), but it is necessary to test the face velocity recommendation with local safety legislation before using the fume hoods. Most hoods are usually designed for a minimum face velocity at full sash opening; but as a means to save energy, some hoods design the hood's minimum face velocity at the half-sash opening, producing new low-flow laboratory fume hoods, which are now on market.

Although there is various type of Laboratory fume hoods,  5 of them are renowned among the user due to their different properties. Let’s have a look upon the same:

Bench-top Fume Hood - A fume hood at the bench-top is normally mounted on a bench-top or above a storage cabinet. Bench-top hoods are used for a wide variety of chemical procedures that require small to moderate quantities of low to high toxic materials. Benchtop Fume Hoods have efficient containment and emissions of low particulate mass gases, vapor, mists, fumes, and other aerosols. 

Distillation Fume Hood- A distillation hood is defined by a low height of the work desk, which results in the operator having a wide working height. It allows for the installation and positioning of large distillation equipment in the workroom. Otherwise, it has features similar to those of a regular fume hood. The hood is unable to withstand fires since the sash is fully sealed. If there is an explosion hazard, the user should have adequate strength to deflect or contain the anchored barriers, shields or enclosures.

Perchloric Acid Fume Hood- The perchloric acid reacts with organic materials violently. The perchloric fume hoods also require built-in water wash-down systems to prevent salt deposits from being perchlorinated. Both treatments use perchloric acid must be limited to a perchloric fume hood to avoid adverse interactions with certain chemical substances. Perchloric acid should not be used with a traditional fume hood. Perchloric acid vapours may settle to ductwork, resulting in perchlorate crystals being deposited. 

To Radioisotope Fume Hood- Radioisotope fume hoods are designed primarily to protect users from hazardous materials. We have specially designed workstations to withstand the weight of lead shielding tiles, and may also have lead-laced sashes. For decontamination purposes, the interiors are made of stainless steel with polished corners. 

Floor Mounted Fume Hood- For applications involving large Lab equipment, floor-mounted fume hoods are used. These hoods, as the name implies, are mounted on the floor, without any work surface. It allows the movement of materials and machinery into and out of the hood. Mounted floor hoods are often referred to as walk-in fume hoods, although incorrectly. 

This Information is regarding laboratory Fume mostly usually used 5 type hoods and their variety like, how reliable and safe it is, how it protects user-health from various harmful gases it will be easy for the user to choose which one suit best for their needs and important facts to ensure its full protection. So, the user won’t be afraid of trying these 5 Laboratory Fume Hoods. Now that everybody will be easily similar about types of Laboratory fume hood and its properties, which will be very useful to attract the several user/customer, and it will automatically improve the trade as well.

We have everything that anyone requires to make a lasting impression on the users who are associated with a laboratory fume hood.

If users have any queries regarding above-mentioned types of laboratory fume hood, they can feel free to contact us.

5 Steps for Testing and Maintenance of Benchtop Fume Hoods

These devices are designed with transparent sashes for optimum chemical resistance, which can slide horizontally or vertically into position and enable high visibility at work. Many safety features apply to a standard fume hood. Often they're a big piece of enclosed equipment that creates work area. They are leak-proof which ensures that even with heavy daily use and corrosive spills, their enclosures do not corrode. The chemical fume hoods circulate and filter the air to remove the vapours that may have been formed. Such benchtop hoods are put on a flat and stable surface, which people can easily operate on. By using the sash to change the front gap, ventilation can be balanced across the hood to the point where contaminant capture is maximised. Each hood has its optimum sash setup. When operating in the hood, the sash should be left in this position, and fully closed when the hood is not in use.

The sash can be opened for installation of Lab equipment absolutely, but must return to the best conditions before contaminants are generated in the hood.

One of the most essential things is to do the maintenance and testing of Benchtop Fume hood so that one can bring it in use for a long time without any obstruction. For the same one can go through the 5 important ways maintenance and testing of Benchtop Fume Hood that is being given below:

Ensure the sufficient face velocities- Before each use; hoods should be tested by the user to ensure sufficient face velocities because the fume hood does not have sufficient flow levels for the necessary work and lack of unnecessary turbulence. Switch off all services and accessories and lower the sash completely in case of exhaust system failure when using a hood. Leave the area right away.

Accreditation is important for the work safely- Fume hoods should be accredited to ensure they work safely, at least annually. Typical tests include measurements of the face velocity, checks and containment of the tracer gas. Tracer gas containment checks are especially important because studies have shown that face velocity is not a reasonable indicator of leakage of the fume hood. Fume hoods are among the most critical tools used and abused for the monitoring of hazards.

Protection from harmful exposure- Consumers should recognize that the combined use of safety glasses, protective gloves, laboratory smocks, good practices and smoke hoods are very critical elements in shielding us from potentially harmful exposure. Always remember the person most likely to get hurt is the user of the hood. All laboratory occupants can also be affected by the escape from noxious material into the laboratory.

How it design to shield- Fume hoods only cover users when properly used and when properly run. A fume hood is designed to shield the occupants of users and rooms from exposure to vapours, aerosols, hazardous chemicals, odorous substances, and other harmful substances. A secondary purpose when dealing with potentially explosive or high clear reactive materials is to serve as a defensive shield.

What to do when the repair is needed- EH&S performs a practical performance test to ensure that hoods work around every 18 months, as needed. Usually, the performance check involves an assessment of a VAV's face velocity, tone, storage, monitoring capacity and tracking ability. Also notice any observed power, sash, baffles, plumbing, lighting, or corrosion issues. When a hood fails an inspection, they will need to be withdrawn from service before it is fixed. When repair is needed, EH&S will inform the researchers and post a Do Not Use sign. After completion of repairs by UW Facilities, EH&S will reproof the hood and bring it back into operation.

Now that everyone can easily gain information related to 5 important tips for maintenance and testing of Benchtop so the user will have information about fume hoods by which one can take work from the same for a long period. It can be very beneficial from the business point of view.

Above mentioned information have entire details that are required for the maintenance and testing of Benchtop fume hoods. There is also detail information regarding the same which can be very beneficial for the same (Maintenance and testing). If users have any queries regarding testing and maintenance services feel free to contact us. 

6 ways to how to integrate your Science Lab Equipment, efficiency, and profitability

Top Tips for science laboratory efficiency: 

Three important components raise the level of efficiency in the science laboratory. Firstly, the people working in the lab, secondly, the processes they follow in the lab and thirdly, what equipment they have and how to use it? 

Let's elaborate on these three components: 

1. People 

• Hire the right people: 

any laboratory of the lab's matters efficient Science Lab Equipment than its people. Every lab teams require strong leadership and continuous education with training and motivation includes clear achievable goals.

• Culture of innovation: 

never feel hesitate and embrace while asking why am I doing it this way? Is there any other way to apply the proper method in the new protocol?  Everyone has free-reign; regular method review should be a well-planned exercise to avoid risks and distractions from the task at hand. 

2. Processes 

• Lean the bench space: 

Being lean doesn't incorporate anything complex. This method ensures your labmates can be efficient and possible too. 

• share the responsibilities:

 some people are calculated for specific areas of the lab in terms of cleanliness in an efficient way. 

• begin with the intended upshot: 

efficiency increases the output obligations of the lab plus the manner approach and method development. 

• make inventory levels invisible:

 instead of filling available storage space with boxes so that it is clear when stocks are running low. 

3. Equipment 

• advance types of equipment: 

it's easy to have an equipment calendar for everyone what they want when they need it. There are a lot of free shared calendars that can be used by anyone and slows them to plan in the lab for the experiments. 

•maintain your equipment: 

without regular maintenance, the equipment starts less operates efficiently and effectively. 

• Look for new products that can increase your throughput: 

There are numerous new laboratory products present every year and it helps you in seeking the methods to raise samples of your output and also make protocols more efficient.

Keeps a vigil over a new generation of programmable lab equipment such as the Vital Co-Mix, that’s permits you to set a protocol and leave the unit running for hours or even days without need of any supervision.

Stop supposing that all the big players have the answers to all questions. If you have better answers or solutions for the improvement of the product in the world and give you benefit then the small manufacturers well able to modify their equipment to better suit you. 

• Long term investment: 

Science laboratory equipment should be seen as an investment. If you are getting something that you are going to use all day or a little more on something will be better in long term than opting for the cheap and cheerful choice which needs replacement and repairs every few months. 

Work smarter, not harder: 

The sayings of "work smarter, not harder " is applied over all the scientific laboratories as they are working on clinical drugs, molecular biology, R and D and many other researches. It's only notices is to achieve the best possible results with the least possible output. 

Where to buy lab equipment suppliers?

In the event that you are someone who either works in a laboratory or owns one, then you will be aware of the immense importance of getting good laboratory equipment. The lab equipment is an essential part of any laboratory and it has immense bearings on the way the lab functions. Faulty lab equipment can result in lowering the productivity of the lab. It is for this reason that you will have to be careful in getting your lab equipment. In this article, you will learn about some easy ways to find a good lab equipment supplier.

Over on the internet or from the Yellow Pages you will be able to get hold of a number of lab equipment suppliers. The results can be a bit overwhelming because you will have to choose one from literally hundreds of options. Often times, the large amount of choice can make the decision making process a bit confusing. So you will have to set out for some parameters first and check if the supplier you want is meeting these parameters or not. This will help in the selection of your supplier more fluid and flexible a process.

1. Experience: 

The first thing which you should look for in your lab equipment supplier is the experience they have in their job. Often times, people turn to this career after having nominal success in other supplying fields. But lab equipment supplying is an industry in itself and it requires years before a supplier can truly build himself up as a good brand. This will be important for you to look into because it will help you understand that the supplier you chose is genuine and is aware of the equipment that he needs to supply. He will also provide you with top quality materials because he has a reputation to maintain also.

2. Parts supplies: 

The suppliers you choose must be able to provide you with spare parts should you require them to fix your equipment. A lot of suppliers would want you to buy new products when you have a malfunction in your products. This will not do. Your supplier should be able to procure spare parts when they are available as it makes no sense to buy a new equipment when your old one can be easily fixed.

3. Customer care: 

The supplier must provide a good customer care service. These days a lot of suppliers are earning disrepute for the horrible after sales services they provide. You must carefully read the contract to check the exact after sales services which you are entitled to get. This will help you to be at ease concerning the high risks that malfunctioning lab equipment can have.

4. Reviews from other clients: 

Always go through the reviews left by former clients of the supplier to get a good idea about them.

For more information on this you must search for (https://www.cleatech.com/laboratory-equipment/).

Hopefully, the information mentioned in this article will have helped you.