Table 3 The comparison of the area for emission amount based on ventilation in the 3D workspace.

From: Evaluation of formaldehyde, particulate matters 2.5 and 10 emitted to a 3D printing workspace based on ventilation

3DP workspace (µg × min/m3)

Test

Retest

Ventilation off

Ventilation on

Difference

Ventilation off

Ventilation on

Difference

ME

PLA

Formaldehyde

1447.73

892.52

555.21

1639.63

1356.41

283.22

PM10

987.43

988.84

− 1.41

570.87

541.67

29.19

PM2.5

527.31

527.88

− 0.58

307.42

293.23

14.18

ABS

Formaldehyde

2242.52

899.44

1343.07

1861.77

700.82

1160.95

PM10

737.59

803.75

− 66.16

692.07

645.20

46.87

PM2.5

403.00

437.98

− 34.98

373.02

347.69

25.32

TPU

Formaldehyde

2202.99

908.63

1294.36

1971.78

747.59

1224.19

PM10

919.39

922.92

− 3.53

37.41

37.19

0.22

PM2.5

497.76

499.21

− 1.45

22.94

23.06

− 0.12

VP

Clear

Formaldehyde

1924.03

914.72

1009.31

2500.82

1194.63

1306.18

PM10

875.67

858.99

16.68

1937.71

2064.13

− 126.42

PM2.5

473.91

466.76

7.15

1046.11

1123.39

− 77.28

Dental LT

Formaldehyde

2243.45

1490.37

753.08

2092.22

1357.40

734.82

PM10

789.29

701.45

87.84

2347.43

2542.53

− 195.09

PM2.5

426.47

377.20

49.27

1271.78

1378.08

− 106.30

Flexible 80A

Formaldehyde

1801.57

1311.13

490.43

3325.32

1727.05

1598.27

PM10

598.15

589.68

8.47

757.65

711.87

45.78

PM2.5

322.08

318.28

3.80

417.62

390.75

26.87

  1. 3DP 3D printing, ME materials extrusion, PLA polylactic acid, PM10 particulate matter 10, PM2.5 particulate matter 2.5, ABS acrylonitrile butadiene styrene, TPU thermoplastic polyurethane, VP vat photopolymerization.
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