Hazards of 3D Printing
Although 3D printing was first developed in 1984, it wasn't until more recent years that it took off. If you search the web, you'll find thousands of videos and articles showing people utilizing 3D printers to create everything from aircraft components and artificial organs to earrings and action figures. But all these types of 3D printing have something in common: they pose a risk to the health of those who use them.
The biggest hazards produced by 3D printing can be broken down into two main groups: ultrafine particulate emissions and volatile organic compound emissions.
Ultrafine Particulate Emissions
The first of the two categories is ultrafine particulate (UFP) emissions. UFPs are released into the air throughout the 3D printing process. These UFPs are incredibly small, making them invisible to the eye. Additionally, their small size makes them a threat for a longer amount of time than you might think. While bigger particles tend to settle rather quickly after they have been emitted, UFPs are so small and light that they can remain airborne for up to 48 hours. Because they are in the air so long, they have a much higher chance of being inhaled by the printer's operator and anyone in the near vicinity for extended periods.
Because UFPs are so small and easily inhaled, they can rapidly enter the lungs or other tissue and lodge deep within causing discomfort and potentially other problems. It has been widely reported that inhalation of UFPs is closely associated with cardiovascular disease; in one study, it was even stated that the relation between long-term exposure to UFPs and the incidence of cardiovascular and cerebrovascular disease may be underestimated.
Volatile Organic Compound Emissions
The second significant hazard posed by 3D printing is the emission of volatile organic compounds (VOCs). VOCs are easily described as the fumes emitted during 3D printing with certain filaments, like acrylonitrile butadiene styrene (ABS) or polylactic acid (PLA). Oftentimes, these fumes are noticeable and can be smelled. Other times, the 3D printing process can be odorless but is not necessarily any less dangerous.
Inhaling VOCs over the short term isn't always hazardous; VOCs can be produced even when cooking up dinner. The problem for 3D printing arises when one considers that printers are often in use for hours and hours at a time. Anyone working near one will be exposed to the VOCs produced for their entire work day, day after day. This is potentially harmful and can cause discomfort and even significant health challenges.
According to HealthLink BC, low dosages of VOCs, "can cause eye, nose and throat irritation, shortness of breath, headaches, fatigue, nausea, dizziness and skin problems... Long-term exposure may also cause damage to the liver, kidneys or central nervous system." They go on to say that VOC exposure has even caused cancer in some cases. Not all people will have the same reactions but especially people with respiratory issues, such as asthma, must be extra cautious when being exposed to VOCs on a routine basis.
How to Protect Yourself
While it is possible in some cases to operate 3D printers outdoors or in locations with excellent ventilation, this is not usually the case. So what can you do to minimize the risks presented by working with and around 3D printers?
According to a study published by the Illinois Institute of Technology, "The most effective control strategies for reducing both UFP and VOC concentrations included installing a high-flow spot ventilation system and operating the printer in a sealed enclosure with high-efficiency gas and particle filtration."
The perfect solution to reduce the hazards of UFPs and VOCs is a ductless hood. Because of the versatility and variety available in ductless hoods, they are appropriate for everyone using 3D printers, from hobbyists printing at home to major manufacturing companies that use dozens of printers at a time.
AirClean Systems offers a wide array of products that can suit your needs. Some are as small as a benchtop enclosure, like our AC600 Series Ductless Chemical Workstation, or you can work with our experienced sales team and engineers to create a solution as big as a room. Our hoods and enclosures can combine both HEPA and bonded carbon filtration, protecting you from both UFPs and VOCs in just one highly effective and user-friendly unit. Our sales team is ready to help you find the perfect solution for your needs.
At AirClean Systems, our goal is to provide you and your process with the best protection available, allowing you to focus on the task at hand.