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16 Jul

Carbon Filters and 3D Printers

The use of 3D Printers has exploded over the past 5 years with the majority of those in the educational, home and small business environments being of the FDM or FFF type. These 3D Printers use a spool of filament that is made from a wide range of materials such as PLA, ABS, PETG, Nylon, Wood, Metal, Flexible, Polycarbonate, Carbon Fiber to name a few.

Some of these materials such as ABS and ABS/Polycarbonate will off- gas fumes when they are heated to their printing temperatures of 240 degrees  C and higher. ( which is over 430 degrees F). These gases produced from the Styrene portion of the material can be harmful when inhaled in large quantities or over long periods of time.

The manufacturers of ABS filament recommend that the materials be used in a well ventilated area or within an enclosure using Carbon or some other adsorptive media to remove the gaseous pollutants.

D-Mark, Inc. has been manufacturing Carbon filters since 1970 and produces small, compact carbon filters for 3D Printer enclosures. One of them is made by LiteWorld LLC based out of Florida. ( ) These small CarbonWeb filters remove the odors and gases from the printers using a small fan to pull the air from the enclosure both keeping the air in the surrounding environment safe and the 3D printer clean. The use of the enclosure also aids in the printing process when printing materials that are affected by cold air hitting the build platform during the 3D Printing operation.

D-Mark makes a wide variety of Carbon medial and other adsorptive materials for the commercial, institutional, industrial, medical and residential markets.  47 years of experience has put them in a league of their own. They are currently moving to a new location as they have out grown their production space.

For more information on the complete line of Carbon filters please go to our website at:  or call us on our toll-free number at: 800-343-3610.







30 Mar

3D Printing and Odor Pollution

Air Cleaner Filters

Working with 3D Printers for the past 5 years has provided me with a lot of personal data on the issues of odor or gaseous pollutants that may be emitted when printing certain types of materials.  Certainly one of the major contributors to strong odors when used in the 3D Printer is ABS.

ABS has a petroleum base and while it has some unique material characteristics it also crates a significant odor when printing. At 240 degrees C or close to 520 degrees F, this material can both release sub-micron particles and some significant gaseous pollutants during the printing operation.

In 1970, D-Mark Inc. was formed to provide carbon based media to remove or reduce gaseous pollutants. Today, D-Mark is one of the largest producers of granular activated carbon products in the U.S.

Acrylonitrile butatiene styrene ( ABS ) is a well know plastic material used in many household products.  Styrene is compound that can be somewhat challenging when inhaled or if exposed to for periods of time. The carbon media offered by D-Mark can significantly remove and/or reduce the ppm levels of the ABS gases and does it very effectively.

These carbon filters are included in the new LiteWorld Protective Enclosures ( that are specifically designed to be used to enclose large bed 3D Printers. As more new materials are developed for use in the FDM or FFF style 3D printers the issues of odors and particulate control will continued to be a point of discussion.

D-Mark has been developing new materials with higher concentrations of carbon in smaller filters to offer better odor and gaseous pollutant control. As the issues with Additive Manufacturing and pollutants continue to expand look for more and better environmental control systems from D-Mark, Inc.

For more information on the complete line of Carbon filters please go to our website at: Or call us on our toll-free number at: 800-343-3610.

11 Feb

3D Printing Materials Off Gassing

As more companies, schools, organizations and home owners begin to put 3D Printers into their facilities there is a growing awareness that some of the materials used for 3D Printing may  generate some odors during the printing process.

This is due, primarily , to the high temperatures at which most 3D filament ( FDM Printers )  operate. For something like the common PLA materials ( Polyactic Acid – Corn Starch ) is extruded at a temperature between 205 and 220 degrees C. This is around 420 degress F. When printing with PLA there is a mild, sweet smell generated and it is very benign.

For materials like ABS (Acrylonitrile Butadiene Styrene or ABS-Polycarbonate ) there are some issues with off-gassing of the ABS as it can produce a somewhat strong odor and some of the gasses could create respiratory issues for some individuals.

Granular activated carbon filters and media, as manufactured by D-Mark, Inc. , are used in some enclosure devices to assist in removing much of the odors and gaseous pollutants generated by the 3D Printer.

D-Mark has been in business since 1970 and has over 45 years of experience in making and designing adsorption products for over 400 organic and inorganic compounds. Their CarbonWeb materials are used exclusively in the LiteWorld Protective Enclosures ( used to enclose many of the larger FDM style 3D Printers on the market today.

D-Mark makes a wide variety of granular activated carbon materials and has a great new website from which you can not only order their products but learn a great deal about the technology behind the carbon filter processes.

For more complete information on their entire product line please go to their website at: . Or call them on their toll-free number at: 800-869-8025.

17 Jan

SLA 3D Printer

  I have mentioned on other occasions that I use 3D Printers for a number of applications. For the most part they are the FFF or FDM filament type printers that use various types of materials that come on spools which look like weed-wacker line. These are the most commonly used in the market.

We recently got an SLA 3D Printer that uses photo sensitive resin and creates the object using a laser. This is more exacting and creates a finer finish of the printed product. It is, however, much more expensive to operate than the FDM printers.

D-Mark, Inc., a company founded in 1970,  began by making a few types of adsorptive media by using granular activated carbon. A relatively common material. Over the years D-Mark has enhanced its product line by developing a more effective and exacting type of activated carbon with their CarbonWeb and OdorGuard product line. In addition, they have added some other catalytic materials to provide a medium that can reduce and or remove over 400 gaseous pollutants and odors both organic and inorganic.

Over their 45 plus years of being in business, D-Mark has out lived much of their competition and are one of the leaders in the production and development of products for the removal of gaseous pollutants in North America.

D-Mark produces carbon based filters for variety of markets including; industrial, commercial, institutional, medical and residential.  D-Mark really only makes commercial grade products so all the markets served by D-Mark, including residential, use the same high grade products without compromising performance.

While the production of carbon filters does not seem to be in the same technological realm as 3D printing, the application and design of the carbon filters requires a deep understanding of molecular weights, air volumes, parts per million and adsorptive rates.  Like 3D Printing, the application of D-Mark’s products requires experience and an in-depth understanding of the customers application.

For more information on the complete line of products please go to our website at: or call us on our toll-free number at: 800-343-3610.