Air Quality and 3D Printing

What is the approximate boiling point of PLA?

• Little blobs of plastic and plastic byproducts

• Microscopic organisms

• query

• Airborne dust particles

• Tiny metal fragments

Can nanoparticles be generated from plastic even below its boiling point?

• 100°C

• 150°C

• 220°C

• 300°C

What are the other air pollutants produced by 3D printers called?

• Yes, only if the plastic is wet

• No, they only form at or above boiling point

• Yes, through processes like a hot shower producing steam

• Only if the plastic is exposed to direct flame

What is a simple way to address air pollution from 3D printers?

• Particulate Matter (PM)

• Volatile Organic Compounds (VOCs)

• Carbon Monoxide (CO)

• Sulfur Dioxide (SO2)

What percentage of nanoparticles can a HEPA-rated filter remove from the air?

• Use a humidifier

• Always work in a well-ventilated space

• Wear a dust mask

• Only print with PLA

For what particle size does a HEPA filter's total capture efficiency typically show a dip?

• 90%

• 95%

• 99.99%

• 99.5%

What is the approximate size range for nanoparticles?

• 0.01 micrometers

• 0.1 micrometers

• 0.3 micrometers

• 1.0 micrometers

Which particle capture mechanism involves a particle being too large to pass through the filter media?

• 1-100 micrometers

• 1-100 nanometers

• 100-1000 nanometers

• 1-10 micrometers

Besides filtering particles, what additional benefit do HEPA filters with activated carbon beads offer?

• Diffusion

• Interception

• Straining

• Inertial Impaction

What is the approximate boiling point of PLA?

• They cool the air

• They remove Volatile Organic Compounds (VOCs)

• They add humidity to the air

• They generate negative ions