Table 3.

Total particle (TP) emissions from printing with ABS and PLA filaments.

Color/filament	Instrumenta	Comb 1	Comb 2	Comb 3	Comb 4	Mean	RSD (%)b
Natural ABS	SMPS	2.21 × 1011	2.33 × 1011	—	—	2.27 × 1011	3.7
	ELPI	1.25 × 1011	2.09 × 1011	—	—	1.67 × 1011	35.6
	PTrak	—	—	1.25 × 1011	2.09 × 1011	1.38 × 1011	8.2
	GRIMM	—	—	—	9.74 × 106	N/A	N/A
	DustTrak	110.8	249.9	—	—	180.3	54.5
Red ABS	SMPS	2.17 × 1011	1.61 × 1011	—	—	1.89 × 1011	21.0
	ELPI	2.40 × 1011	2.17 × 1011	—	—	2.33 × 1011	7.1
	PTrak	1.59 × 1011	1.51 × 1011	—	—	1.55 × 1011	3.6
	GRIMM	5.26 × 105	4.94 × 105	—	—	5.10 × 105	4.4
	DustTrak	36.9	43.2	—	—	40.1	11.1
Blue ABS	SMPS	1.15 × 1011	9.43 × 1010	—	—	1.04 × 1011	14.0
	ELPI	1.09 × 1011	—	—	—	N/A	N/A
	PTrak	7.44 × 1010	5.78 × 1010	—	—	6.61 × 1010	17.8
	GRIMM	9.70 × 105	9.78 × 105	—	—	9.74 × 105	0.6
	DustTrak	80.8	75.9	—	—	78.3	4.4
Black ABS	SMPS	1.21 × 1011	1.69 × 1011	—	—	1.45 × 1011	23.4
	ELPI	6.90 × 1010	7.18 × 1010	—	—	7.04 × 1010	2.8
	PTrak	7.41 × 1010	9.69 × 1010	—	—	8.55 × 1010	18.9
	GRIMM	9.20 × 105	9.12 × 105	—	—	9.16 × 105	0.6
	DustTrak	12.7	9.0	—	—	10.9	24.1
Army green PLA	SMPS	2.11 × 1011	1.45 × 1011	2.85 × 1011	—	1.80 × 1011	18.2
	ELPI	9.67 × 1010	5.41 × 1010	4.77 × 1010	—	6.62 × 1010	40.3
	PTrak	—	1.53 × 1011	6.96 × 1010	—	1.11 × 1011	50.3
	GRIMM	—	6.43 × 106	4.65 × 106	7.92 × 106	6.33 × 106	25.8
	DustTrak	—	31.6	28.5	—	30.1	7.3
True red PLA	SMPS	1.93 × 1011	2.62 × 1011	1.09 × 1011	1.38 × 1011	1.76 × 1011	38.4
	ELPI	4.39 × 1010	3.32 × 1010	2.36 × 1010	4.41 × 1010	3.62 × 1010	27.1
	PTrak	—	9.53 × 1010	8.66 × 1010	5.67 × 1010	7.95 × 1010	25.5
	GRIMM	—	5.82 × 106	9.18 × 106	4.55 × 106	6.52 × 106	36.7
	DustTrak	—	30.8	44.1	—	37.5	25.1
Ocean blue PLA	SMPS	5.64 × 1010	2.44 × 1011	1.67 × 1011	—	1.56 × 1011	60.5
	ELPI	2.38 × 1010	5.83 × 1010	6.66 × 1010	2.22 × 1010	4.27 × 1010	53.9
	PTrak	—	9.46 × 1010	7.11 × 1010	3.02 × 1010	6.53 × 1010	49.9
	GRIMM	—	1.13 × 107	5.95 × 106	1.16 × 107	9.62 × 106	33.1
	DustTrak	—	60.9	—	54.9	57.5	8.4
Trans. blue PLA	SMPS	2.13 × 1011	1.93 × 1011	2.47 × 1011	—	2.18 × 1011	12.5
	ELPI	7.77 × 1010	8.69 × 1010	4.78 × 1010	—	7.08 × 1010	28.9
	PTrak	1.17 × 1011	2.37 × 1011	9.76 × 1010	8.05 × 1010	1.33 × 1011	53.3
	GRIMM	—	1.16 × 107	5.39 × 106	1.06 × 107	9.20 × 106	36.3
	DustTrak	—	35.4	34.0	—	34.7	2.9

^aUnits are number of particles (SMPS, ELPI, PTrak, GRIMM > 0.65 µm) or micrograms of particles (DustTrak).