Original Source : https://laboratoryquipment.blogspot.com/2020/01/what-to-look-for-when-purchasing.html

Ductless fume hoods are described by multiple names like filtered fume hoods, or carbon-filtered enclosures. Ductless Fume Hoods are self-contained and filtered laboratory enclosures that eliminates dangerous fumes, vapors as well as particles from the laboratory.

Not like conventional fume hoods, investment prices are very cheap plus no ductwork is needed. Hence, countless people think choosing one is a slam-dunk when they first discover them.

There are few crucial things to analyze before reaching the final choice to buy a ductless fume hood. Consider these aspects into careful thought to be sure that a ductless fume hood is the correct decision for the Laboratory Supplies the applications:

2. Is the common application suitable for a ductless fume hood?

Countless different classes of ductless as well as the filtered fume hoods few hoods still restrict application that can be implemented in them. Few ductless fume hoods should only be utilized light-duty instead of process explicit fume hoods. Additionally filtered fume hoods can be utilized for a broad range of chemicals, however, keep in thought that more extensive chemical amounts will ever reduce filter life. 

This indicates that:

• A restricted number of complex chemicals should be applied.
• No excessive heating should be taken out in the hood.
• Unostentatious chemical amounts should be accepted, about 500 mls or less by chemical.
• Mediocre chemical display times should be managed.

2. Will the chemicals included in the application be adequately filtered with the available carbon filters?

Typically, ductless hoods will be equipped with chemical explicit filters. Explicit filter kinds enhance chemical trapping capability for complex chemical groups; but, few chemicals cannot be securely filtered or are not filtered efficiently sufficient to enable ductless hoods to be a financially viable alternative.

2. How frequently will you have to substitute the filters?

Although you won't have the added cost of tube work downloading and wiring together with a standard fume hood you want to consider how often you want to remove your filters, and the maintenance costs associated with that, to add your total yearly filter costs.

Filter lifespans can end from a few months up to two years. You will want to search out how long the expected filter lifespan is for your application so the weigh that against the cost to establish a standard fume hood. It also considers the energy cost of running a standard fume hood which totally replaces tempered air from the laboratory and taxing the HVAC system.

2. How do the pros as well as cons of utilizing a ductless fume hood stability out for you?

If you possess decided that a ductless fume hood is most apparent suitable for the application, the ultimate thing to perform is to decide how the benefits of a ductless fume hood persist up against its disadvantages, plus how both adjust with the organization's overall purposes. 

Conclusion 

These four things are very important to look For When Purchasing a Benchtop Ductless Fume Hoods, before buying benchtop ductless fume hoods these four points will help you.

Original Source: https://laboratoryquipment.blogspot.com/2019/09/explain-different-types-of-fume-hoods.html

Introduction

Fume Hoods are devices to protect the users in a lab from the dangerous toxic vapors and fumes. Certified filters are used to filter out the harmful fumes and provide protection to the user. The box like unit has a tall base. They are mostly used in laboratories. Its main components include sash, air foil, work surface, baffles, exhaust, and hood body.

Different fume hoods

 

Types of fume hoods available in the market include Canopy Fume, Chemical Fume Hood, ADA Fume Hood, Ductless Fume Hood, Extractor Arm Fume Hood, Biosafety Cabinet/ Hood, Variable Air Volume Fume Hood, Perchloric Acid Fume Hood, Portable Fume Hoods, Polypropylene Fume Hood, Walk In Fume Hood, and Radiosotope Fume Hood.

Chemical Fume Hood

Chemical fume hoods are used in the labs to protect the users by handling the harmful chemicals. It reduces the exposure to dangerous vapors and chemicals in a lab. It is developed using a good quality steel.

Ductless Fume Hood

Carbon Filters are used in the ductless Fume Hoods to eliminate vapors and fumes in a laboratory. Carbon filters are environment friendly and advanced. It eliminates the harmful fumes and provides a clean air to the lab. They are cost effective and energy efficient. It also comes with an electronic monitoring system to ensure efficient operation of the carbon filter.

Canopy Fume Hoods

Canopy Fume Hood is used for non-toxic materials. It eliminates odors and heat steam. It is ideal for use over the ovens.

ADA Fume Hood

This ADA compliant fume hood is developed to provide a safe work environment for the technicians. It is engineered perfectly to meet the safety needs by properly aligning digital air flow monitors, switches, lights, and epoxy coated steel for the exterior. It facilitates hand operation.

Low Air Flow Fume Hood

It is developed to operate at reduced rate when compared to the standard unit. It takes less space in a lab. It saves 40% of electricity bill.

Extractor Arm Fume Hood

It is a local exhaust ventilation system. It eliminates local air streams, odors and fumes. Its size varies from 2 inches to 4 inches. The extractor arm fume hoods can be fitted on a wall, bench or a ceiling. It can be customized to suit your lab requirement.

Biosafety Hood

Biosafety fume hoods and cabinets are ideal for labs where communicable diseases are handled. The technicians can safely work with materials that are contaminated with the pathogens.

Variable Air Volume Fume Hood

The volume of air that is exhausted can be controlled in this fume hood. It maintains a constant velocity. It can be used with exhaust controller systems of other producers. It has a sash to provide a clear view to the user. It provides visual clarity with interior lighting.

Perchloric Acid Fume Hood

The steel device is developed to work with perchloric acid. It helps to prevent the formation of perchlorate salt. It can be customized to meet your lab needs.

Those searching for fume hoods can choose the right fume hood for their lab needs and get protection in a lab.

If you are someone who works in laboratories, then you will have seen fume hoods a lot. You must already know the function and essential features of fume hoods but it are crucial for you to know how you should operate these fume hoods in a safe and secured way. In this article, you will learn of some safe laboratory Benchtop Ductless Fume Hoods and Vertical Laminar Flow Hoods recommended practices.

1. Understand your fume hood: The laboratory fume hoods are essential instruments that are used in laboratories. They are crucial accessories that ensure safety so that no one is exposed to hazardous or dangerous fumes. Earlier on these hoods were made from wood however as advancements were made, the designs and tech used in these hoods evolved a lot. These days’ hoods are coated with epoxy and are made from steel. Style and construction of the hoods underwent a lot of changes to ensure that they become safer to operate in laboratories. It is important to install the hoods in a proper way so that they can be utilized in the correct way. This will ensure the health and safety of the people who work in the labs.
3. Not store utility: You should remember that your lab workers must not use the hoods for storing anything. It needs to be understood that these hoods are not storage spaces. Thus, no one should keep any chemicals or equipments on the hoods. That can result in blocking airflow. Thus, you should ensure that tools, equipments or chemicals are not placed on the hoods. This is one of the most major safety recommendations when it comes to using laboratory fume hoods.
5. Some minor tips which you should try to enforce in your lab to ensure more safety are:

• If it becomes necessary then you should try to work with materials which are not hazardous.
• 
  · You need to ensure that all the exhaust fans on the hoods are working properly.
  · You must ensure that no one places their head inside the hoods when it is working.
  · The hood’s sash needs to be enclosed so as to help in conserving energy
  · The doors of the laboratory must be closed all the time.
  · The hoods should not ever be used for disposing any item.

1. Educate the lab workers on operating fume hoods: In order to be sure that the hoods are working properly in the laboratories, it will be important for the owner or the management of the lab to see to it that there are training programs initiated to educate workers about the hazards of working with fume hoods.
3. You should ensure that general contaminants are all effectively stored away and disposed of.

It is important to use the laboratory Benchtop Ductless Fume Hoods properly so that it can help in performing its duty in a safe and secured manner. The workers will have to ensure that the laboratory fume hoods are operated on properly. Hopefully, the information mentioned in this article will have helped you.

Original Source: https://cleatech.blogspot.com/2019/03/sefa-laboratory-fume-hoods-recommended.html